can you run IOTA from the phone settings?
start, settings, personal, phone, services tab:
then select Internet, get settings, and click Start and see if IOTA runs.
if not, get the IOTA cab and install it, run IOTA again and see what results that gives you.
might help to know what carrier you are using.
you can get the IOTA cab here if needed:
http://justpctech.com/PPC/IOTA.cab