Yes, you should. The reason you should, if you purchase installation there is at least a $5 discount for installs done at Third Sphere. So, when you order installation you would have your TSH information.

This link will get you a free month of hosting:

http://arpguruc.thirdsphereplus.com

Then purchase AutoResponse Plus.

You can install it yourself, or order professional installation

We Guarantee Installation on Third Sphere Hosting servers in 48 Hours!