It doesn't look like he's updated his site in at least a couple years... I'll mirror them until/unless told otherwise. Here:
http://neohyphengeo.com/pang_fix_roms.ZIP
I don't have an SSL on that site so if your browser is difficult about downloading files on plain HTTP, do the needful. In Chrome this may be pasting the URL in a new tab or right clicking to download and dismissing the warning(s) that the file can't be download "securely."
