Help Trouble With Import

I am trying to switch from VB4 to Xenforo.

The only problem i have, till now, is to import pictures from PhotoPost vBGallery into XenGallery.
After nearly one day of importing i got this error:

Fatal Error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 12000 bytes) - library/XenForo/Image/Gd.php:78

#0 [internal function]: XenForo_Application::handleFatalError()
#1 {main}
array(3) {
["url"] => string(62) "http://www.xxxxxx.net/xenxxx/admin.php?import/import"
["_GET"] => array(1) {
["import/import"] => string(0) ""
}
["_POST"] => array(1) {
["_xfToken"] => string(8) "********"
}
}
Click to expand...
Strange is that i have in 3 different tables 3 different numbers.
Content = 194 755
Content_data =196 849
Photo = 197 117

Original amount of pictures must be 260 576

So i am still missing around 65k of pictures in xenforo.

----------------------------------------------------------------------------------------------

The next thing is about albums and category.
In VB4 we have some different category's under these are the different albums from members.
One category is most important because this restricted only to a special user group.

When i now import from VB4 to Xenforo i got the Category's like we have before. But no content.
Means no user album is in there.

To change this all by hand is a huge work with so many members (8k), albums and pictures.

Is there no other way to preserve the structure like she was?

Thanks in advantage.

 

Thanks,
the issue with the memory i solved already. I increased it from 64mb to 128mb.

But i don't understand why this error was happen.
I don't have any big pic in my VB installation.
In VB all pic's are limited to a size of 800x600. So there is no need to handle big pic's or resize them.

For the second i don't write clearly enough.
In VB i used Photopost as the Gallery.
I will test in the next days if i have a problem with the access to this pic's.
Because before had categorys and inside User albums witch are accessible depending on the group of users.