Hey, So iv looked around on the Interwebs quite a bit and I cant find a Solutions to my issue that I'm having so i figured i might try to post something and see what i get.
I am Running v1.3.9h
Had everything up and Running Correctly on a Localhost to test it out. I Migrated it over to an Online server so that it is a Live website. When i started to Add products i would enter in the proper info then Click preview to Proceed to the next step and i get this error

Server error.

The website encountered an error while retrieving http://www.XXXXXXXXX.com/tng/zencart...roduct_preview. It may be down for maintenance or configured incorrectly

Then I checked my Cache Debug Logs and Got this.

[18-Jan-2011 15:14:26] PHP Warning: require(includes/modules/new_product_preview.php) [<a href='function.require'>function.require</a>]: failed to open stream: No such file or directory in E:\Inetpub\ZenCart\admin\product.php on line 83

[18-Jan-2011 15:14:26] PHP Fatal error: require() [<a href='function.require'>function.require</a>]: Failed opening required 'includes/modules/new_product_preview.php' (include_path='.;C:\php5\pear') in E:\Inetpub\ZenCart\admin\product.php on line 83

Can someone please point me into the Right Direction.

Thanks,
Dustin