Good job man!
A few quick comments, mostly about the interface:
Please loose the chalky pastel color scheme. It?s too distracting for the textual color coding you are trying to use. Maybe you?re testing on a CRT, but I?m using a LCD and the whole hue of things is just off.
The link ?[toggle the numbered tile links]? when in battle does not seem to work.
You have several different ?loading? messages/boxes/callouts/whatever for when Ajax is doing a postback. Consolidate these, and only use one box, one style, etc.
A ?loot all?, or ?loot all unique items? or ?drop all armor? or similar button would be nice for some of the more common mass inventory actions.
Unless size matters, make all the item panels the same width.