Donncha, I'm writing here, 'coz my comment is not getting through your site. Right after installation(development version), I've found a bug in Cache removal function. Here're the details.
1. Click on List tab to have a listing of all cached URLs.
2. Next click, Remove from the extreme right on any URL. Basically, it should remove the cached URL on which the remove button is pressed, but the function is removing entire cache.