Thanks Stefan,
I ended up compiling the server myself (downloading the code from sourceforge), but found some problems, specially the file libnssha1.a was missing (same error as in the log file)
I downloaded a tar from fileswatcher.com with the code for nssha1 and it did included that file.
http://www.filewatcher.com/m/aolserver-nssha1-0.1_1.tbz.8768.0.0.html
(using this mirror)
ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/amd64/packages-6.4-release/All/aolserver-nssha1-0.1_1.tbz
after placing it on the source tree it worked.