All the Store Stuff on mine is missing after the install. The game runs fine, and anything non-store in a .dbc format shows up in-game, as well as .packages, etc. I uninstalled and now have TS3 and WA, but the Store stuff is still missing. :\
Mine did that as well. The easiest fix is to simply remove all your bought store stuff from the download/install screens and then go to the sims3 website and redownload them. That is the only thing that I have found that works, time consuming, but is relatively easy.
My opinion of HELS is that it was a waste of twenty dollars.