If you own Partition Magic 7 there's a patch on their web site
https://order.powerquest.com/scripts/web...ode=PM701UPDATE
(that's for version 7.0 International English)
Alternatively go here: http://www.powerquest.com/updates/
If you have Partition Magic Pro 7 then there aren't any updates and since it's got the "Designed for Windows XP" logo on their front page I don't think you should have a problem with it.
My friend had a problem similar to JBrave, but that was because of a dying IBM drive.
Hope this helps,
Patrick