$GLOBALS['vbulletin']->options['edittimelimit'] = 0;

[Andy]

Also a nice idea. But i think if it's not working global, there is no way to get i working with the advanced attachment manager atm.

The plugin solution works fine for me as I described above. Perhaps I'm not following what it is you're trying to do.

[Pander23]

Hm ok, then this should work. Needs a lot time more for me to code it on that way, cause i have a lot of usergroups, forums and users with inviduell edit post time limit permissions. But sure, your idea is good. A global 10 years limit should solve all my problems.
If i have more time maybe i do it as you. Other possibility would be to disable the advanced upload manager.

I hate the f*** bugs in vb, thinking about changing my forum software soon. For coders is vb not really good (atm). Maybe vB 5 will be better or even worser.

[Andy]

I have only one usergroup for my members and control individual member settings using plugins.

[Pander23]

Not the badest idea.
Btw. cool motorcycle. :P