After fiddling for hours I'm 'selling out'.
$50 bounty for anyone to fix this site so that It works in IE6 and Safari 3+.
[url removed, login to view]
I'm sure an expert could pinpoint the problem and whip out a solution lickety split. (First time I've ever used the phrase 'lickety split' - cool.)
Applicants must have Paypal account.