I. haven't been active in RS for some time, & only just came back. Solomon's store isn't working for me (on a Mac). I can only see the top 3-6 items in any category, and nothing will scroll.
See if you can buy outfits straight out of the in game wardrobe interface. give me back that filet o'fish! give me that fish!
Have you tried using a different browser? There have been some reports of the store not functioning correctly in Chrome.
Did you try using a different browser from Firefox?