Yup, I've been generating my own lists as well...Gawd I LOVE Linux shell scripting for things like this!...
> touch zz_images.htm
> for i in `seq 7000 7600`;do echo "http://www.radioshack.com/images/ProductCatalog/ProductImage/60/m60-${i}.jpg">zz_images.htm;done
Then just repeat the for statement with the URLs of the large and medium pics and in less than 15 seconds I've got the same list you attached.
I gotta remember to give you due credit on the page rfnagel, it was your website (and the details within) that put me on the right track to create my page.