Hi Arun,
There is as such no single documentation for SP upgrades which I am aware of.
Note 1607221 - SAP NetWeaver Identity Management 7.1 SP7 gives information as to the components which need to be upgraded. Also, it mentions where to look for the documentation for the upgrade.
You would also need to update the component "NW IDM IC 7.10 UIS FOR NW 7.10" to SP007
For the issue related to JCo, I have replied your earlier post.
Cheers,
Murali