[Plugin: NextGEN Gallery]Nextgen and Seo

I’m setting up my e-commerce site making a good use of Nextgen.
Nextgen’s core is ‘imaging’ which could result a bit ‘weak’ on Seo optimization as basically we put a ‘shortcode’ in posts, not urls or descriptions to ‘attract’ search engines attention.
I’d like to know how to setup Nextgen for an effective Seo.
Thanks