First, the panties in a size 5 nearly always fit me, and I'm well past a 30/32 now. The cotton panties with the contrast banding around the waist and legs (usually the ones that have cute prints on them) are unbelievably comfy. I highly recommend. Plus, how can you resist some of them? So cute. Like this:
http://www.torrid.com/torrid/store/product.jsp?FOLDER<>folder_id=2534374302035993&PRODUCT<>prd_id=845524442211471&bmUID=1260556342009
With everything else at Torrid, it's kind of trial and error. The knit tops should fit with no problem (but they tend to cling, so you have to be okay with that). The woven tops are hit or miss. Some are made bigger than others. Look for the ones that have some stretch. I've never been able to wear their bottoms, though, save a few stretch skirts. Hope this helps!