Connecting android tablet as testing device

Connecting android tablet as testing device

I have a problem related to connectivity between my desktop (Windows) and
tablet (Android 4.1). I bought a new device (Colorovo City Tab Vision 7)
and now I want to use it for testing of my applications, because emulation
of android is very slow on my computer, although I forced it to create
snapshot every run. I have downloaded SDK with Google drivers and also
some unofficial drivers I found on web.
When I connect my device, it first appears 'Other device' (label is
CTVision7) and it's marked as unknown. I tried to install drivers (Google)
for it, but windows said that they aren't suitable for my device, as it's
not able to find them in specified directory. After these attempts I tried
unofficial drivers. Their installation worked and now my device appears as
Android phone, what seems to be good. But when I run adb devices or launch
application in eclipse, there's no avaible device. I have turned USB
debugging on, so it should work.
Am I missing some step to make my device avaible for debugging, or are my
drivers wrong? Is there any way to get drivers which surely work?