You need to uninstall the trial version, reboot and use Impulse to download for you. Don't forget to put your email address (the one you used to order ODU) in the registration at the upper right of the right pane when Impulse opens (where it says Registration).
Welcome to the Community Biotech-Hunters
If you have problems, you can also find lots of answers here: http://forums.impulsedriven.com/forum/497
The Moderators are very experienced...don't hesitate to pm (private message) them by clicking on their names and selecting from the drop down menu.