I assume that you have already heard about the new and exciting features for CCLM coming with SP12 of Solution Manager 7.1. The documentation to implement CCLM is now directly embedded in the Solution Manger Set-Up for Custom Code Management.
If you need some more information on how to work with these new features in SP12, please read:
For your convenience here you can find some information on CCLM until SP10:
And here are information on how to set-up UPL:
I hope this helps to enjoy the new features in Solution Manager SP12.