AbleCommerce Shopping Cart Software

Is anyone else using AbleCommerce to host multiple stores? Do you have any shared inventory between the stores? If so, how are you managing shared inventory?

Also, what are you using for order management and pick lists/pack slips?

We have done tons of customization to our stores which make upgrading fairly painful. I'm looking at potentially replacing some of our customizations with plug-ins and software solutions to have a more standardized approach to things.

We did have an Able 7 site that had two stores in the same database. I don't think Gold supports that except in an older version, like 7.0.1 or 7.0.2.