Help with XSLT!

I'm trying to learn XSLT and thought that PHP 4.0.4 with the Sablotron extension would be ideal for this, but I quite simply cannot get any samples I find to work. I'm trying to use the class.XSLTransform.php file mentioned in the annotated PHP manual, but I get a fatal error on line 113 (don't have the exact text,but it doesn't say anything more useful). I've compiled PHP --with-sablot --enable-sablot-errors-descriptive --with-pgsql, and tried two sets of sample files which are said to work. One from phpbuilder, the other from another php site, that I don't remember the name of off hand. (The second set of files has to do with recipes, in case anyone out there might know where I found that set of files.) I'm running PHP 4.0.4 on Apache 1.3.14 on Linux Mandrake 7.1. I've also tried both 4.0.4 and 4.0.4pl1 on Apache 1.3.14 on NT 4 with identical results. Is there a problem with the sablotron extension that isn't mentioned anywhere I can find, or am I doing something wrong? Some simple samples that any of you have gotten working would be greatly appreciated. - Theo