Noticed a couple of bugs in the template changes:
Any references to "$userinfo[username]" in the postbit and postbit_legacy replacement should read "$post[username]" instead.
Also, for the MEMBERINFO replacement, the original code isn't included in the event that IM Online Status is turned off (so you'd get nothing).
BTW, I'm going to click install for this, but I'm going to have to leave it turned off for the time being. No matter what I do (regardless of which server I use) the script will only work for AIM and for Yahoo. It won't work at all for MSN or ICQ. (I even installed the actual clients - I normally use Trillian - and made sure the settings were correct in there, to no avail.) The script probably needs to be updated to include changes in the protocol, and I'm going to leave it off until that's done.
I would appreciate it if you could keep us appraised in any updates in the situation, adb.