Hi LH154,
This could be because you are using PHP 5, change the extension from .tpl to .php and see if that works, if it does, do it for all files in the template.
Regards,
Myles.
Goto core/localconfig.php - goto app config, copy the bit in app config where it says you can either select phpvms or geo(something) and then copy and paste that into local config at bottom, and replace geo(something) with phpvms in the "".
Sorry about it being vague, didn't have the file on hand.