EasySound packs come as a .ppi and .ppf file.
If this is the only pack to be used on Genos, you may just copy the .ppi file to the flash drive and install it on Genos.
If you have more than one .ppf pack (but NO .cpf packs ) to install, use YEM to load these packs and create a .ppi install file (which is what Tony has done). You may also create a .cpi file, and you may want to check if that makes a difference (I don't know as I always use WLAN to send my packs to Genos). I would not go for quick installation files (.pqi, .cqi) until the current problem is solved and normal installation files do work.
So far Tony's workflow appears to be correct. Difficult one... Do you have already some .cpf packs installed on Genos?
Just to rule this out: have you tried to format your USB flash drive at the Genos? Use Menu2 / Utility / Storage to do so.