Hiya
I didnt mention it, because I had previously (on a different post) mentioned that you can get access to WIS much cheaper via the USA version of the site than the European one. Its $18 a day there, vs 25 Euros + Tax. (ever felt ripped off!) - sadly no EPC on the US site ;-)
http://www.startekinfo.com
(strangely
www.startekinfo.de redirects you to that site as-well)
Now, the trick there is that it wants you to be in USA - it does that by expecting US zip code in the credit card validation.
So, if you want your UK postcode to work there, strip off all the letters (WC12 8QT becomes 128) and pad it with 0 to make it 5 digits), ie 128 becomes 12800
and use that as your ZIP code - may need to prefix a state, such as NY to it)
Richard