I am interested in finding out if either Aletia, affordable Web hosting or valuablehost.com offer the Exchange project (http://theexchangeproject.org) shopping cart. I have written to all of them but so far no response. Does anyone here know.

That is a free shopping cart and can most likely be installed in your account without the hosts approval. Just like any other PHP script. All you need is access to PHP and one MySQL account.

Is very easy to install, you only have to edit 2 files.
If you need help, let me know... I installed near 10 times :)

As far as I know, Web Group Media:

http://www.webgroupmedia.com/tep_partner.php

is the only TEP partner (webhost offering TEP) I know of. Their full webhosting services w/TEP (and they install it) is $13 a month.

I just purchased their TEP package for a client, after talking to them for several weeks. Jeff is very nice, and answered all my nagging questions in a reasonable amount of time.

I'm still waiting for activation of my account - but I'm looking forward to testing their services.

I have installed 2 sites using TEP on Aletia Hosting - no problem.........