Edit: Seems the question has been answered by dEBRUYNE in comments above. Therein lies the answer.
Use your XMR seed with the XMO client to get your funds back. You can still exchange them to XMR at Changelly, but I wouldn't count on that being the case forever, as XMO is not, as far as I know, used by anyone, at all, for anything.
XmanXU has posted on github here the fork, though I would not recommend using it. The person advertised the publication on reddit as well, to near-universal disapproval, by the way. It seems to be a scam coin that actually hurts the privacy of XMR itself.