520470 virtuemart pagination issue

Hi there, Just about to launch site when client noticed a small but significant problem.. Please see the URL here: [login to view URL]~hilton/ 1) go to FRAMES 2) go to (for example) page 6 of the results. 3) now select Brand > Ted Baker 6) you will see there is a pagination error - it doesn't go to page 1 of results hence you won't see any ted baker frames. Apparently it is a well known bug. If you have managed to create a fix for this, or feel you can, please get in touch. Thanks