Nice site, needs some design improvements though:
1. The username/password text is on the same line, add spacing.
2. The favicon doesn't really match
3. Make some animation or make it change to another picture with inner glow or something on the buttons
4. Remove the "You are here: Home" and add a darker or brighter area on the button that represents the page your on
5. I wouldn't make the navigation bar follow you down the page, though it's nice, I think it's overkill
6. Reverse where "Ways to use itsMob" and the part next to it with increase your sales part, looks empty unless you scroll down
7. Too much spacing from the navigation bar to "Now get $25..".. Well too much spacing in general
8. On the footer, change the password text box to the same as the Username one
This's just my personal opinion :) Hope your site succeeds