I'm not a techie, but I will try it:-)
As I see, you have a huge ammount of posts, so you won't be able to save
and re-up them all in this three weeks.
I would do it this way:
1. locate the posts you want to save.
How to find them:
http://vintage-erotica-forum.com/showpost.php?p=4064559
http://vintage-erotica-forum.com/showpost.php?p=4064561
2. Download as many as you can post by post, saving them on your harddrive, sorted in folders named with the number of the original post, so you can find this post later, when you will re-upload it to another host.
You find the number of the post in the url, when opening your post, by cklicking at the postcount number (at the right corner top of the post), to open it in a new window:
Your post opens in a new window:
http://vintage-erotica-forum.com/sho...postcount=2207
http://vintage-erotica-forum.com/showpost.php?p=4065315
There are two numbers: The postcount (of the thread, in this case: 2207), which can be ignored, and the Nr. of the post which is unique for each post on the board, in the example: 4065315.
You will always find your post again, by replacing the nr. of the post in the url of any single post at VEF with the your post nr. (e.g. 4065315).
e.g.:
http://vintage-erotica-forum.com/showpost.php?p=4064395
Replaced the number in the url with 4065315:
http://vintage-erotica-forum.com/showpost.php?p=4065315
To download the images you can use
jdownloader or the addon for firefox:
Imagehost grabber. I'm not familiar with JDownloader, but Imagehost Grabber works fine.
Alternative you can use
halvar's tool which he wrote especially for VEF and imagebam/imgbox.
You will find it here
3. You can re-upload to another host like
imagevenue.com
pimpandhost.com
turboimagehost.com
Hope this helps a bit.