Is it compatible with all 2.0 versions? Any advise or warnings
Never even heard of it...
It's a mod compatible with 2.0 ... you may have to emulate to get it to work. Try it first and see but as always, do backups before you do anything.
http://wiki.simplemachines.org/smf/How_can_I_install_a_mod_that_doesn%27t_work_in_my_SMF_version