Problems installing smarty on a shared host

Hi folks. I've recently moved my site to a shared host, and this is the first time I've had to set up my site in a really restrictive environment, and I'm running into problems getting smarty installed. Using the basic example set up from the Smarty docs, when I run the file I get the following error: Warning: main(Smarty.class.php): failed to open stream: No such file or directory in /home/virtual/site357/fst/var/www/html/smarty.php on line 4 Fatal error: main(): Failed opening required 'Smarty.class.php' (include_path='.:/php/includes:/usr/share/php:/home/pablogosse/smarty/') in /home/virtual/site357/fst/var/www/html/smarty.php on line 4 Now, as you can see by the value of my include path, I've got the path to smarty added, but it's still not finding the file even though /home/pablogosse/smarty/Smarty.class.php does indeed exist. Can anyone tell me why this is happening? As I said up until now I've been lucky enough to always have access to dedicated servers where setting this up was never a problem, but I know there's something I'm missing in understanding why this isn't working. Any help is appreciated. Cheers and TIA. Pablo