I was just going to mention that folder. I'm glad that you were able to attach the db successfully.
Remember that SQL Server has different credentials than your user account. That's why handling files need special care when doing it through SQL Server.
Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?
How to post data/code on a forum to get the best help: Option 1 / Option 2