Simple Online Inventory Web Listing/Catalog

We require an online catalog for displaying our trailer homes that are in inventory. We are currently using a shopping cart in catalog mode at [login to view URL], but we want to incorporate something into our existing website at www.stewartparkhomes.com. The solution must be very easy to deploy, as we will upload and deploy ourselves. We want it to look something like the open inventory catalog at [login to view URL]). When someone clicks on the photo, it should bring up a large photo (Flash? I think). When they click on the floor plan, it will pull up a floor plan that we already have as a shockwave file. We just need to be able to specify the URL to the file. We need a simple password protected backend form with which to upload the following description information: Model Number Stock Number Price Location Square Feet View Floor Plan (Select/Upload Photo) (Active/Inactive Checkbox) (Submit) The table in which the inventory is displayed should fit within the editable region of our template (see [login to view URL]). The colors of borders and backgrounds must be consistent with the colors at [login to view URL] and [login to view URL] WE NEED TWO INSTANCES OF THIS PROJECT--ONE FOR EACH SITE...THEY WILL HAVE DIFFERENT HOMES IN INVENTORY AND WILL USE THE RESPECTIVE COLOR SCHEMES OF THE TWO SITES. The number of items in inventory will be very small...perhaps 15-20 on each site. This site needs completed by 3 PM Eastern Today, Tuesday, August 1st.