We have tested with 220.127.116.11 and it doesn't work in OpenUI.
It still works with the traditional UI.
According to the Deployment Guide, iHelp doesn't work with OpenUI in 18.104.22.168.
According to Chandan DasGupta from Oracle, iHelp uses a not so elegant way of working with two Views simultaneously in Siebel.
It probably wouldn't hurt to bug your TAM with this.
There are more customers complaining about this.