Update 10s to latest Android OS

I bought ViewPad 10s tablet a while ago and I never used it till now. Only this week I started to use it, but I realized that it has very old OS android 2.2. And it does not even have the google play. It has only 256 MB free space.

I would really really appreciate if one of you (android guru) help me to get the tablet to the latest OS. Otherwise its really unusable

thanks
pal