Kocaso M730W, upgrading from 2.3.4

I'm sorry if this is the wrong place for this post. This is a large site and I couldn't determine where to post; this section seemed to make sense.

I have a Kocaso M730W that came rooted and installed with Android 2.3.4. I've had some issues with it (crashes), so I'd like to install a newer ROM. I actually have one I want to install, but I can't figure out how to manually install CWM Recovery, and in a terminal, I see I have no fastboot command. I'd appreciate any advice on this and on getting this tablet upgraded to a more recent version of Android in general.