Just a quick comment on two things:

Meta Data: Things have really changed over the last couple years in regards to metatags. Much of it has been deprecated to the point that adding keywords does little to no good. Google has specifically stated that they don't look at keywords anymore:

http://googlewebmastercentral.blogsp...?commentPage=2
http://searchenginewatch.com/article...-Secure-Search
http://selfstoragemagnet.com/tech/se...yahoo-or-bing/
http://www.708media.com/search_engin...-meta-tag-seo/

Images: EP4 does not upload images, it just updates the entry for the main image in your products database. You need to use an FTP program to upload your images. Now, without stepping on any toes, I suggest you upload a nice sized main image and then use one of the image processing plug-ins to create your Small and Medium images.

For additional images to work, you start with your main image as the base file name, and append _1, _2, _3, etc. to each additional images:

hb_3270.jpg
hb_3270_1.jpg
hb_3270_2.jpg
etc.

Upload those using ftp and Zencart will automatically show your additional images.

Remember, the image names NEED TO BE THE SAME! I also highly recommend that your images name have NO spaces. Yes, names with spaces will work, but
in the long run you'll be better off not having them. Plenty of programs out there to help you fix things like this.

Hope that helps.
-chadd