I have searched for the latest version of presence and i found that
Cisco Unified Communications Manager IM and Presence Service Version 9.0
This is the latest version?
The software can be ordered from the put?
Latest one for IM&P is UCSInstall_CUP_18.104.22.16800-21.sgn.iso
For CUCM is something along those lines, and you should be able to order it.
if this helps, please rate