Major trouble after nameserver switch

Hi. I have been working on updates for a site ( ripariumsupply.com ). It was previously just html pages, but I am rebuilding it as a WordPress-supported online store. I got the eCommerce plugin from GetShopped.org and an ecommerce theme from another vendor.

I have been working on the new site as an Add-on domain from my blog directory ( hydrophytesblog.com ) so I accessed it via hydrophytesblog.com/ripariumsupply

I got the site mostly put together and was ready to start it up, but when I made the nameserver switch to point over to the other host it was broken. Now the images on the homepage slider do not display correctly. Any link to the interior pages puts the “hydrophytesblog.com” on the front of the url, but I need all of the pages to direct right from ripariumsupply.com. You can see the effect if you open the home page and click around…

http://www.ripariumsupply.com/

I just hadn’t thought about the effects of working on the site as an add-on domain. It looks to me like the WordPress formatting put that hydrophytesblog.com/ directory into every link.

Can you imagine any fixes for this, or will I have to rebuild the whole site?