When I try to process uploads from FTP I can only select 1-6 images, if I select more, it just sends me to an almost blank page with just Process Images written on it.

Is this memory exhaust relating to gd lib?

Try adding the following to your php.ini file:

memory_limit = 32M
max_execution_time = 30    ; Maximum execution time of each script, in seconds
memory_limit = 128M        ; Maximum memory a script may consume (16MB)
upload_max_filesize = 25M
post_max_size = 25M

It seems like it's when an image is more than 20 mb or so that it crashes. Is it GD lib or is it the memory? I tried editing the htaccess as well as adding a couple of lines to wp-config.php but it still cant handle 20mb plus files?

Did you try editing the php.ini as Shazaam recommended.  This has been the fix for quite a few of us.   I found mine in public_html

I have issues processing images over about 11mb with imagemagick and i have already bumped up my memory in php.ini.