Help How to install applications without MicroSD and Wi-Fi?

[Yanolla]

I've bought Coby few days ago. There are no MicroSD on it, I use only it's personal memory.
First of all I can't setup Wi-Fi settings, but the worst thing that I can't find files
in personal files I connect Coby to my PC, Can create new folder, and copy some fies there to install them from Coby.
But unfortunately I can't find those files.

Please, Help me to install files without using MicroSD and wi-fi.

Thanks in advance,

Regards,

Yana Altunyan