Welcome qboxhd!
Yes, this box can drive you crazy...
For the ITVHD: I found that if you scan for 28east it will overwrite the settings and you get a strange channel. So what I do, once you get it going safe the settings to your computer using dreamboxedit. Then You can scan channels for 28east. Then you go back to the original WORKING settings you have safed earlier and use the "compare loaded services" and compare it to the new settings. Then you can choose which channles to update and which not. Unclick the ITVHD channel and safe the settings.
Then leave the Dreamboxedit program and and FTP the Qbox. In the etc/enigma2 directory delete all the useruquets. Then FTP the bouquets radio and TV, lamedb and settings file there, and the satellites xml to the var/tuxbox directory. I always change the attributes to 755 (not sure if this is needed).
After you finished FTP, simply turn off the power at the back of the box. If you use the reboot command or use the FTP of the Dreamboxedit you will lose ITVHD
That will work for sure, I have done it several times already.