Recently active topics in twitterfeed tagged with wordpresscom

Hey there, I've got a Twitterfeed set up through wordpress.com for quite a while now and I'd like to modify that now.

However I'm unable to find the feed as my list of feeds appears to be empty, even though it's posting: http://twitter.com/carocat/statuses/5...

I'm not sure if it's related, but since setting up Twitterfeed I set up domain mapping for my wp.com blog changing my url from carocat.wordpress.com to carocat.co.uk.

Please advise on how I can see the created feed or alternatively just delete it and I'll set it up again.

Thanks. :)