Link Issues since moving site to a new server.

I recently moved one of my sites to a new server and I'm getting some link 404 errors on a few relative links as well as links to my custom content pages.

On my old server, links to custom content pages looked like this:

<a href="http://www.website.com/shop/pc/about-d1.htm">About</a>

Now that returns a 404 error and only this code works:

<a href="http://www.website.com/shop/pc/viewContent.asp?idpage=1">About</a>

Does anyone know how I can get those links back to the SEO friendly version?

Also for my logout link which looks like this:

<a href="CustLO.asp">Log Out</a>

It doubles up the shop and pc directories. So instead of the url looking like this:
http://www.website.com/shop/pc/default.asp?action=clear
it looks like this:
http://www.website.com/shop/pc/shop/pc/default.asp?action=clear
Causing a 404 error.

Does anyone have any idea why that would be happening?

Thanks

Brian - you need to set the custom 404 handler according to this WIKI article:

dunno.  first place I'd look is at home page settings on general settings tab.  seems there is a / missing somewhere causing a script to want to look relative to current location rather than relative to the root.