I have managed to get transmission 0.82 working on my WL-500gP.
I found it unable to remove the directories created on my USB disk after torrent download is completed. I tried purge, remove, scrape etc and do not help. I tried reboot the router and even use FTP connection to remove still no good. When use FTP to delete, it says directory not empty Please advise. Also, how can I upgrade to the latest transmission version manually?