Default Unicenter ServicePlus Service Desk on Android

I work for a company that uses unicenter serviceplus service desk to log and track calls/workorders. I'm not able to access the website on my htc magic. I've tried the built in browser and dolphin browser. The one issue seems to be that when on a computer it pops up asking for a username and password this never happens when i'm trying on the phone. any ideas?

thanks
HTC One