We’re sorry to hear that you’re having trouble installing Intense. Intense is a rather large plugin, so there are sometimes issues with the plugin being larger than what is currently set on your site for the max upload size. The easiest solution is to unzip the plugin install file and upload the “intense” folder to your site via FTP. You can also increase the max upload limit. The link provided should help you to get the upload limit changed (if you want to go that route).
If you still have troubles, please let us know and we’ll find another way that we can help you get everything going.
We will make sure that the money you spent is not wasted.