asterisk users - Oct 2006 - centos or rhel and txfax with libtiff

I am attempting to use txfax on centos 4.4
the libtiff is:

libtiff-devel-3.6.1-12
libtiff-3.6.1-12

Is this OK or do I have to download the libtiff stuff and install it also.

I am not having much luck faxing yet. I receive 1/3 pages or 2/3 pages 
etc...
I have yet to receive 3/3 pages.

THanks,

Jerry