i know it sounds like a waste, but the easiest way is to simply click modify on your post in personal area, copy the post contents, and make a new post in the mini review section and paste the contents..
as an administrator i ican also MOVE your post, but the only problem with that is that it will get sorted as if it was written a long time ago. you can send me a private message to work out more details.
Looks like the best way is to use the first method. The only thing that will make it a slight hassle is that of uploading the jpgs. Will have to put them in the right order or the jpgs will be all jumbled up.
Ideally there should be a way to select multiple jpgs and they will upload in sequence.
Also, there seems to be no way to insert a new jpg in between previously uploaded jpgs, or for that matter, reordering them when changes are made to the review.
That said, there should of course be a way to just Move the post and still have it reflected as a new post. Of course, this could just be a limitation in the forum software.