You might be able to hack it if tftp is still open on the router :
From :
http://forum.openwrt.org/viewtopic.php?pid=21108
It looks like it *may* be unsupported with respects to installing openwrt on it.
If you're up for the hack go for it.... Dont think its worth it if you can get a replacement
---------- Post added at 18:31 ---------- Previous post was at 18:27 ----------
PS What happens when you hard reset the router ?