correct URL is not showing

I host with Godaddy.. multi site subscription.
I have differant subfolders hosting different websites

Domain name 1 is redlineinflatables.com
Domain name 2 is smallbusinessdcs.com

Hosted like this
domain 1 is at redlineinflatables.com
domain 2 is located at redlineinflatbles.com/windsor_web_design

Here is my problem… when I type in smallbusinessdcs.com it goes to my website like it is supposed too… but when I go to a differant page.. say Our Portfolio it shows up in the browser like this redlineinflatables.com/windsor_web_design/our-portfolio/# and I want it to show up as smallbusiness.com/our-porfolio

I have spoken with GoDaddy and they are saying there is something in WordPress coding that is causing this.. and I’ve googled everywhere and can’t find out how to fix it… without having to get separte hosting accounts obviously.

Can anyone help me?
thanks in advance.