Did you unzip breezingforms_170_UNZIP_FIRST.zip before you began your installation?
If not, you need to do that. Then, the file you want to install first is com_breezingforms_170.zip. Installation of it is a two-step process. After the first part of the component installs, you will need to go to your Components menu, to BreezingForms, and then choose 'Configuration,' and follow the steps from there.
If you have proceeded with installation as noted above, I'm not sure why you might be having trouble... If that's the case, could you please explain the steps you took?
Thanks,
Terry