followed the instructions in the other post... I also put powerstore in it's own directory on a different site and tried it from there. Now I getting pretty much the same error...
The Database Connection(s) required for this content do not exist in this site. Please create the following connections to use this preset:
Columns: CategoryName, CategoryID, CategoryParent
the only difference is "ps3_categories" instead of just "categories"
the link is www.earlyreaderbook.com