Yes as per the instructions the main UI is the archived file, you need to download both.
I should be coming out with a new version that has a all in one download. Im taking my time before coming out with the new version to work out every little detail.
This next version should be my final one for a while. Look for it in the coming weeks.
Im also playing with a lot of shared media files to get the artwork looking better and easier on the eyes.
Heres a non combat preview.