Do you have the original Born Slippy somewhere? This is a must!
There is one up on ebay...
http://cgi.ebay.de/UNDERWORLD-Born-S...QQcmdZViewItem
A slightly longer, but not much different version is on the Pearls Girl single 2:
http://cgi.ebay.de/Underworld-Pearls...QQcmdZViewItem
And don't pay much money for those 'standard' CDs like Dark & Long EP. It will come up on eBay eventually. I would not pay more than 10-15€ for this.