Well this pass week i have been trying to upgrade WordPress 3.1.3 to 3.2-RC4. It would not work, it would stall and run for hours, no luck, so every-time i had to stop the upgrade, and delete the . maintenance file via FTP. Then the new 2011 Update came out so i figured, maybe it was just the RC file. No luck either, then the official release of 3.2 came out still no luck. So i looked it up the first link i clicked said go to wp-content and delete the upgrade folder, there is to many temporary files! So i deleted it, all the updates went through. NO PROBLEM. So for your next release you need to really fix this WordPress, I don't have the time to fool around with some Realtors website and screw it up!