If I am still manager of Omnimaga when the old board is back, things are gonna occur this way:
When the old board is back up I will enable guest posting and copy all topic and posts from the temp board to the old one verbatim. I may add the original dates though since all dates will be wrong. However to prevent a massive spambot invasion the board domain name will not be updated immediately so the old board will be avaliable at z 9 . i n v i s i o n f r e e . c o m / o m n i m a g a for a small period of time. The temp board will be locked. I may need some help though if there are a lot of posts to be converted. After this process is done (if even done at all) the old board will go back to omnimaga.org and the temp board will be reenabled only for testing purpose (such as getting familiar with Zetaboards posting and moderation features)
Technically we will have 2 boards, unless somehow Invisionfree ever decides to add a new merging service