No need to start a thread you only have to have a look around the site for them but here's some anyway:
Barcelona FM11 - Football Manager Wiki
http://www.fm-base.co.uk/forum/f109/cules-corner-fc-barcelona-guide-t61788.html
I'm not sure what patch they're for though.
For your formation I'd advise that you play 4-6-0 which I believe neither of the guides advice, but it is what Barca play IRL and is the best formation for their players on the game.
Valdes - Sweeper keeper
RB - Dani Alves - Wing back attack
CB - Puyol - Limited defender
CB - Pique - Ball playing defender
LB - Abidal - Wing back support
DM - Busquets - up to you what role
CM - Iniesta - Advanced playmaker attack
CM - Xavi - Deep-lying playmaker support
AMR - Pedro - Inside forward attack and set switch with AML in player instructions
AMC - Messi - Trequartista
AML - Villa - Inside forward attack and set to switch with AMR in player instructions.