Allow moderators to edit Usergroups?

[Masters]

Hey guys, I need moderators to be able to edit usergroups and that's it.
I found an old hack to allow this and do exactly what I need but it's outdated.

Here's the info for the old hack:
################################################## ######
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## Allow Limited Usergroup Changes Through ModCP v. 2.0
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## Date released: 28 Feb 2004
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## Version: vBulletin 3.0 RC4
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## Hack Author: Christine
##
## Description: This hack allows the admin to select
## which usergroups are modifiable and which
## mods can change usergroups
##
################################################## ######