I'm really sorry to hear that you're having troubles accessing the Movies On Demand service at the moment, and I'd love to help you out. Could you please let me know if you're having any issues accessing any other of the On Demand services? For example Catch Up TV.
Do you get any error codes when trying to access Movies On Demand?
I've attempted to locate your account using your forum credentials, but have been unable to do this. I'd like to run some testing on your TiVo® to see if there are any issues. I'll send you a private message in order to ask a few other questions which will help me with this. Please look to the top right of this page where you'll see a purple envelope icon, click on this and you'll see my message.