How do I "post" to a campaign?, I have enlisted in the Abrams campaign but I am unsure of how submit content to it.
Any help would be gratefully received.

Phil,

You post into the Forum page for the Campaign: All Hail the Abrams!.
Or at least that's what I've been doing...

Phil,

I was partially mistaken. I finally realized that if you want to post a final picture of your build in the Campaign Album, then click on the "Photo" tab at the top of the page (to the right of the Armorama logo).
This takes you to the Kitmaker Gallery. If you are not logged into the Kitmaker, do so. Then you should click on "Campaigns" towards the bottom of the list.
You would then pick the "Currently Active Campaigns" which will then give you a list that contains the "! All Hail the Abrams! " campaign where you can then upload your final photo.
Note - the above is a guess of how this works, sinceI haven't actually loaded a photo, yet.