Wow... something is drastically wrong.

I would bet the Chinese stepper drive is not setup right or failed. People think they are getting a deal buying a $29 chinese stepper then wonder why the machine runs like crap or spend days trying to figure out how to make it work because there isn't instruction. The machine looks like a package deal to me... if that's the case contact to seller.
Seems the Ebay market is flooded with "package machines complete with electronics"... the sellers buy cheap Chinese components then sell the systems for 1000% markup.