For what it's worth, my brother has had ITBS for years now and tried the custom made inserts with no favorable results. Just last year though, he used something similar but just a $20 Dr.Sholls heel insert and helped allot. Between that and his first try with a chiro in Seattle he did a 3 week backpacking trip w/o pain. Something he has not been able to do for nearly a decade.
About two months ago, I started to get ITBS too. Been looking into inserts myself. Will let you know how they work out.
Also, any advice on how to shop around for a good chiro,layton? Questions to ask,things to look for,ect? Thanks.