Fisheye menu freeze

Fisheye menu freeze

Hallo,
Im new & i'm new to the entire html scene.. I know some stuff about CSS & HTML but nothing about javascript etc..

But i've made a site working and everything, but with 1 BIG problem.. My fisheye menu freezes when i switch between my menu buttons to quick.. After a lot of searchin I found out: interface.js script conflicts with the other jquery parts / scripts..

how i found out: kept the demo version of Ui tabs & added <script>interface.js</script> & the page fading froze

Is it possible to have fisheye ( http://interface.eyecon.ro/demos/fisheye.html)
working combined with: Ui tabs ( http://docs.jquery.com/UI/Tabs) and Innerfade ( http://medienfreunde.com/lab/innerfade/)

1. Is it possible to run 2 versions of jquery in 1 page?
2. Can i update interface to recent version jquery?
3. Is there a newer version of fisheye?
4. Is there a good alternative to replace my innerfade + tab's and keep my fisheye menu?

with other words: How can I solve this problem & what are my alternatives

best regards,
Qu1ck