If you have access to the command line I would recommend the following:
I personally use the STSADM command every week to take production and
copy it to a development server
stsadm -o backup -url
http://website -filename C:\website.bak -overwrite
to restore on the new server copy the file over
stsadm -o restore -url
http://website -filename C:\website.bak -overwrite
You just need to create a blank Web Application and Site Collection
with most likely the same name as before to import it into.