If using the boxed version:
... \ Football Manager 2011 \ data \ db \ 1100
... \ Football Manager 2011 \ data \ updates \ update-1110 \ db \ 1100 (after the 1st Patch)
... \ Football Manager 2011 \ data \ updates \ update-1120 \ db \ 1120 (after the 2nd patch)
... \ Football Manager 2011 \ data \ updates \ update-1130 \ db \ 1130 (after the 3rd Patch)
If using Steam:
... Program Files \ Steam \ steamapps \ common \ football manager 2011 \ data \ db \ 1100
... Program Files \ Steam \ steamapps \ common \ football manager 2011 \ data \ updates \ update-1110 \ db \ 1100
... Program Files \ Steam \ steamapps \ common \ football manager 2011 \ data \ updates \ update-1120 \ db \ 1120
... Program Files \ Steam \ steamapps \ common \ football manager 2011 \ data \ updates \ update-1130 \ db \ 1130
If a Mac user:
/ Applications / Sports Interactive / Football Manager 2011/data/db/1100
/ Applications / Sports Interactive / Football Manager 2011/data/updates/update-1110/db/1100
/ Applications / Sports Interactive / Football Manager 2011/data/updates/update-1120/db/1120
/ Applications / Sports Interactive / Football Manager 2011/data/updates/update-1130/db/1130