Kakuta becomes Fulham's second January signing following the permanent capture of Steve Sidwell from Aston Villa.
It's now third from the bottom, three points away from Aston Villa and safety, with five games to go.
Meanwhile, Cardiff City are to have goalkeeper Stuart Taylor, on-loan from Aston Villa, available to them for the rest of the season.
With 10 minutes to go Blackpool threw on forward Ben Burgess and midfielder Barry Bannan, on loan from Aston Villa, while Liam Fontaine came on for City.
Steve Stone, signed by the hosts on a free transfer from Aston Villa this week, and Paul Merson both went close to doubling the lead before the break.
Carew scored his first goal since joining from Aston Villa last month but looked offside as he poked in with only Anton Ferdinand standing between the Norwegian striker and the goal-line.
Kaboul, 22, has also attracted interest from Aston Villa and Portsmouth and his agent has suggested that Pompey would be the youngster's preferred destination, which would leave Keane continuing to look for a centre-back.
Keane's Tottenham strike colleague Dimitar Berbatov has also been at the center of transfer speculation, involving Manchester United, since the end of last season, while Liverpool manager Rafael Benitez is looking to further strengthen his squad with the signing of Gareth Barry from Aston Villa.
After an 89th-minute winner against Saturn Moscow from former Aston Villa striker Milosevic had sealed Rubin's title, the 57-year-old offered his views on football's place in Russia.
Less surprising was the departure of Brian Little from underachieving Aston Villa, although few people other than Wycombe Wanderers fans could have known much about Villa's new manager, John Gregory.
Third-from-bottom Aston Villa take on Manchester City on Monday.
After missing out on the English title to Manchester United on Sunday, Avram Grant's side have gained a small measure of revenge by beating United in the race to sign Bosingwa, who was also attracting interest from Liverpool and Aston Villa.
There are also items from other clubs including Aston Villa, Wolverhampton Wanderers and Birmingham City.
The call has come from Villa Fans Combined (VFC) and the Aston Villa Shareholders Association (AVSA).
BBC: SPORT | Football | My Club | Aston Villa | Villa fans want Ellis out
Aston Villa bounced back from midweek European heartache by beating fellow Europa League entrants Fulham.
The former Rangers midfielder, now with Blackpool, has been the subject of failed bids from Liverpool, Birmingham City and Aston Villa.
"To the fans who travelled to Liverpool and to all Villa supporters, let me assure that we are working as hard as we possibly can to achieve the level of success which this great club aspires to, " wrote Houllier, who took over from Martin O'Neill as Aston Villa manager in September.
BBC: Gerard Houllier explains Liverpool remark to Villa fans
The 21-year-old has been linked with a move to Aston Villa after a scout from the Premier League club attended the recent home game against Exeter City.
The victory was doubly important for Tottenham after fellow Champions League hopefuls Aston Villa had to come from behind to snatch a 2-2 draw with lowly Wolverhampton in the Midlands derby earlier on Saturday.
Tottenham moved up to third place above Arsenal -- who have played two fewer games after coming from behind to draw 1-1 at Aston Villa, who remained in fifth.
The arrival of Lescott could pave the way for club captain Richard Dunne's departure from the City of Manchester Stadium, with Aston Villa reportedly keen on the Republic of Ireland international.
Saturday's 2-2 stalemate at Aston Villa, where they came from two goals down, maintained their unbeaten record but was the sixth time in seven away league games that they have shared the spoils this season.
United went into the match also looking to regain top spot from Manchester City, who leapfrogged them after beating Aston Villa earlier in the day.
Meanwhile, in other transfer news, English Premier League side Aston Villa have signed defender Habib Beye from relegated Newcastle on a three-year contract.
Sheffield United make two changes from the team that lost 3-0 at Aston Villa, with Christian Nade and Stephen Quinn coming in for Chris Armstrong and Colin Kazim-Richards.
Meanwhile, Hammers striker Carlton Cole admits he has been taking advice from former Chelsea team-mate Didier Drogba and Aston Villa's John Carew on how to add more aggression to his game.
Aston Villa manager Gerard Houllier will be released from hospital within the next three to four days, the club have confirmed.
Meanwhile, Aston Villa's James Milner, fresh from scoring in a 2-0 win over Blackburn at the weekend, believes the club's rise to third place in the Premier League has helped him earn his first call-up to a full international squad.
Just above Liverpool are Manchester City, who have the same number of points as Spurs, but have played one game less than the London side, while Aston Villa are in seventh, with 45 points from 26 games.
Robin van Persie scored twice from the penalty spot as Arsenal staged a remarkable comeback to knock Aston Villa out of the FA Cup.
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