OK, I've been up all night and I'm about to crash, but I'll give ya some quick help -
GoDaddy for domain names - OK, so-so (used to be better, b4 they started raising their prices for names!)
for web hosting - from what I've heard, not so good.
Go on a web hosting forum and do a search on them - I was coming across all sorts of horror stories! Yes, they are dirt-cheap on hosting, but you get what you pay for!
Tried to pull-up your homepage - 403 Forbidden Error - ouch!
Your Zen Cart page pulls-up fine, but like you said, it is located in a subdirectory, not the main directory of your site.
403 error likely result of no default homepage page present, and security settings set to prevent viewing directory contents. Easy fix - just upload a homepage for ppl to see when they go to your website, and error should go away!
Try naming it -
index.html
and upload it to your main web directory. Try putting something like the following in it -
HTML:
<HTML>
<HEAD>
<META HTTP-EQUIV="refresh" content="0;URL=http://www.protalkbox.com/zencart/">
</HEAD>
<BODY>
<P>
Click <A HREF="http://www.protalkbox.com/zencart/">here</A> to visit my shopping cart, if your browser does not re-direct you in a few seconds.
</BODY>
</HTML>
The above will automatically cause their browser to immediately re-direct to your shopping cart page, as well as give them a link to click if for some reason that doesn't work.
You can add more and/or change it up later, but at least that will get rid of that nasty error msg and get ppl to your Zen Cart page!