With the new GD libraries its not possible to generate GIF images anymore.
This is because of patents from Unisys with the compression algorithm used 
in gif images.
Maybe its a good idea to change the hole image part in FAQ-O-Matic to 
png images. Normally this should be very easy, because the GD library only 
changed the name "gif" to the name "png". Because of this all you need to
do is to change "gif" to "png" in the program.

I made a patch for the statistic page. 
See: Faq-O-Matic Faq-O-Matic -> Administrators' Guide -> In Development 
How to upgrade to GD library greater version 1.3 ? 

GD 1.19 still supports gif.
cpan> install LDS/GD-1.19.tar.gz