well, without looking closer @ the site (FTP axx), i couldn't say, but i definitely know that when i installed geshi for peeps, there was a copy to clipboard option using flash.
but all my geshi code would be in libs/geshi and not ubb_js
so dunno..
it's just too familiar to me tho and has me wondering :/
--edit--
i see that you had 404s tho, so someone mighta been tinkering, but didn't succeed..