The recording continues after I click Stop Recording

The stop recording button does not work. I have Vista Windows and have followed instructions for opening default browser. I would like to be able to stop recording without closing down the application.

Also, is there a way to convert my recording to 640 x 480 Zune?

Stop Recording will prevent Media Catcher from picking up any new streams. Any streams that have already started to download will continue until they are complete.
There is a Zune option within the converter tool.