I've recently got new hosting, but am having problems with zencart ( and oscommerce for that matter! )

I've managed to go through the installation all fine, but once that's complete I click on go to store and the page is blank and the admin page comes up with the following

Warning: include(includes/configure.php) [function.include]: failed to open stream: No such file or directory in /home/owain/domains/alphamenswear.co.uk/public_html/shop/admin/includes/application_top.php on line 61

Warning: include(includes/configure.php) [function.include]: failed to open stream: No such file or directory in /home/owain/domains/alphamenswear.co.uk/public_html/shop/admin/includes/application_top.php on line 61

Warning: include() [function.include]: Failed opening 'includes/configure.php' for inclusion (include_path='/usr/local/lib/php') in /home/owain/domains/alphamenswear.co.uk/public_html/shop/admin/includes/application_top.php on line 61

Along with a zencart page saying along the lines of 'I need to install zencart'

I've read a few threads on similar things, and tried searching but I can't find a solution

Any help would be very much appreciated, im going mad here

Cheers