arsenal have never won this competition
Arsenal did not get very far in last year;s Champions League. They were eliminated in the Group stage itself.
The last winners of the Champions League was Real Madrid. They won the CL in the 2013/14.
Tottenham last competed in the Champions League in 2010-11. They qualified for the 2012-13 Champions League, however were placed in the Europa League as a result of a UEFA technicality
Lionel messi was the top scorer for the Uefa Champions league 2008/2009 with 8 goals.
Yes, Arsenal did make it to the round of 16 for this champions league this year. They are currently scheduled to play Bayern Munich on February 19, 2013.
we are in the last stages of the group stages, and moving on to the last 16
As the question was asked in December 2009, the answer is Barcelona, who won the 2009 Champions League Final on the 27th of May 2009.
Yes they can. In fact Ajax Amsterdam did it this year (2010/2011 Season). They where elimanted in the group stage of the Champions League and made the last 32 of the Europa League (as of today, they can still go further).
Arsenal did but no London club has reached it.
2006, beating Arsenal 2-1 in the final.
Last time Real Madrid won the Champions League was in the 2013-2014 season beating Atletico Madrid by a score of 4-1