Installed it too; no problem so far. Upon permissions repair, the only thing showing up is:
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.
I guess, it can be disregarded.
I got the same warning.
I recall getting something similar with 6.1 except that there were two of them. I had a clone of my drive so thought I'd risk trashing them and see what would happen on restart. Nada, so you may be right about disregarding the warning - although it'd be nice if terminology other than "Warning" could be used.
ryck