AceStream engine "ImportError" on Android - Help?

Hi,
Recently bought a Toshiba Excite Pro Tab and have been trying to sort out AceStream but when I try and install either 2.1.5 or 2.1.7 I get the same error message of "ImportError(No module name AceStream) when I go into the app after installing it. Anyone know how I can sort this out?

Thanks