What do you mean “results shown don’t include them”? You will need to update the results string processor in csl.js plux the JSONP process modifier in Tagalong. There is a lot of places that need to be updated and it is not easy to show in a single post.
SLP4 + Tagalong4 shows categories in the results. Enhanced Results 4 also allows for modification of the results layout.
Full beta starts next week for premium add-on users. Keep an eye on the forum and blog for details on getting a beta copy.