Yes, it should, but please try sweeping from an address with a small (i.e. dust) balance first.
Or, wait for a few successful user reports (we have one person trying it out now)
I did try it with an address holding 100 XCP.
It didn´t work.
Nothing is happening, actually, if I click in "sweep". Is it my browser? (chrome)
edit_: the same with IE
edit_2: congratulations, the client looks great. Hopefully the sweeping will work, too.
I just tried a sweep with Chrome and it worked.
Try going to https://counterwallet.co/src and doing a sweep from that (this is simply the same counterwallet site, but does not use the minified .js and .css resources), and posting your results in https://forums.counterparty.co/index.php?topic=188 (a screenshot and any error text from the javascript console is most helpful)
Di I need to have funds on the account I am sweeping FROM?
Check my video tutorial, but you have to have ~0.0005 (for each sweepable asset (non-bitcoin)) that you are sweeping, and make sure that you've selected the asset(s) that you are sweeping from the private key...
It was a user error as the key, I copied from blockchain was not in bitcoin-qt format.
Very nice and informative video, thank you very much!