Problem with Expansion pack registration

I recently bought a laptop and have downloaded impulse on it, I run Windows 7 and my browser is Mozilla Firefox.  Yesterday I bought the Entrenchment/Diplomacy bundle pack.  I see it on the "my games" tab and I see all the registration keys on my registrations tab but here's the problem.  When I go to download either expansion it prompts me to install which I click "yes" then it says that it appears this item is not registered and it gives me the option to register or cxl.  If I click register it takes me back to my registration tab where I can see the registration keys, I can copy them to my clipboard and click to update the registrations but that's it.  If I go back to try and install the games there is nowhere that I can paste my registration keys.  I have emailed tech support but I'm hoping someone has run into this problem before and can help me out with it.