is there a Gepard Installation guide?

[pachupappy]

is there? TIA!

[Lelouch vi Britannia]

PM Functor or Read the Manual Patch carefully.

[RoxasV]

as i know he give you a guide isn't it? after you purchase the service

[Trndsttr]

Gepard will give you the guide upon purchasing the license. 

Or try to communicate with Functor

https://rathena.org/board/user/20454-functor/

[Neffletics]

Just send him your server files. He'll apply it for you. I'll also send him a pm with regards to your concern.