FastClass stopped working - urgent help needed please

This worked fine under php3, [snip] include("class.FastTemplate.php3"); $tpl = new FastTemplate("./forms.php"); $tpl->define(array(vwr => "vwr.tpl")); [snip] But now under php4, I get these errors, ..................... Warning: Failed opening 'class.FastTemplate.php3' for inclusion (include_path='') in /usr/local/apache/share/htdocs/OrderPages/vwr.php3 on line 19 Fatal error: Cannot instanciate non-existant class: fasttemplate in /usr/local/apache/share/htdocs/OrderPages/vwr.php3 on line 20 ....................... Now I know kind of what its telling me, Line 19 is the "include("class.FastTemplate.php3");" bit, but why the suddent failure. This works fine under php3... or have I forgotten something? Does forms.php HAVE to be named php3. Its only an include after all? It could be text. Or is the path not getting to it? Dashed if I can make it work I'd really appreciate any input on this. I don't want to go back to php3 now.... and the shop is broken!!! Ohhh Noooo! Thanks for any help Regards Robert http://www.chalmers.com.au Clipart And Books Art, Design and Graphics.