Installing freepbx

I try to install a freepbx server on ubuntu 8.10 (entrepid). I use the clue for ubuntu 6.06 that I saw in the documentation pages but during the installation of zaptel I have the followed errors.
make[2]: *** [/usr/src/zaptel-1.2/zaptel-base.o] Error 1
make[1]: *** [module/usr/src/zaptel-1.2] Error 2
make: *** [modules] Error 2

I don’t understand them. If somebody can help me.

Please search this site as somebody just posted directions for 8.04 the otherday.