Win Mobile 6.5

[Forex Trader]

I recently updated my phone to this operating system, I was able to install MT4 mobile but its no longer taking my registry code, which I used everytime I upgraded my phone. I read on the site that mt4 mobile supports up to win 6.1, did updating it to 6.5 cause it not to work? Will there be an update soon for win mobile 6.5? Please really need this application on phone as I do extensive trading when at work.