IRC-Scripts.com is being planned to return. It's now being run on mirc.net.
You can either access the construction page via www.irctools.com
However, like mirc.net the contents seems to have completely stopped. I haven't spoken to ethaniel in awhile about why construction of the site has suddenly halted.
It does seem like a lot of IRC websites have grinded to a halt actually....ircnews.com, mirc.net, irc101.org, irc-junkie.org...there hasn't been any/much content for awhile.
Anyhoo, as said before, search on google
or some other search engine for "IRC scripts" or something similar - there are still plenty left.