I heard something not long ago about 2checkout being able to bill people and pay in Uk £. Is this true?

I think you've posted in the wrong forum!
Try it in the 'running a ....' board

Not a feature of 2Checkout at the moment.....unlikely to be coming any time soon.

http://support.2checkout.com/forums/thread.php?threadid=52&boardid=4&sid=e07b40e87495dd0e38a1762a0e597960

So will they be accepting new cards? or will it still be the same cards?

Well they should at least try to implement € it's a 250 mil. ppl market

Actually we hope to have multiple currency capabilities up and running by the end of the third-quarter this year.

That will also, hopefully, include payments being issued in a denomination of your choice.

Keep an eye on our homepage -- although I'm certain someone will post news of the enhancements once our active merchants are notified.

Kristin