I have two questions that I am hoping to find an answer for.

Firstly I have SimpleSEO (it comes up as BETA 3.7.1 in the module manager) installed and running on Zen Cart 1.3.8a patch 1, and am reasonably happy that it is creating URLs with nice names.... however.... my search engine rankings are terrible and not a single page has been indexed by google. The shop I am working on has 87 pages according to the latest sitemap which does work ok and has been up and running now for two months so I would expect it to start appearing in Google after spending many hours working on inbound links, adwords and the like.

I see on Googles Webmaster tools that google is crawling my pages one page per currency. ie
http://www.xyz.com/bitsnpieces-galle...ncy=USD&sort=0
http://www.xyz.com/bitsnpieces-galle...ncy=GBP&sort=0
both of which point to the same page http://www.xyz.com/bitsnpieces-gallery which is also in googles cache.

Is this normal? I've read a lot up on the Google pages and it says that Google doesnt appreciate duplicate content. Surely this is duplicate content and hence undesireable for my SEO?

Secondly I have found that my cache/ssu directories are massive ....46.04 MB for only 87 pages of content. Is this normal? I mean, my Cache is larger than my entire product database! 29.74MB is in the /ssu/pc directory and 15.93 in ssu/aliases!

Thanks in advance
Greg