The Windows Vista Anytime Upgrade disc was meant for upgrading from one edition of Vista to another edition. It requires a "retail product key" and is not valid with an OEM product key (affixed to your computer). It was not meant to be used for a clean install of Windows Vista unless you have purchased a "full retail product key".
In order to solve your problem, you have two choices:
1. Order Acer's Recovery Media to reinstall Acer's OEM Windows Vista: https://secure3.tx.acer.com/RCD/Main.aspx
or
2. Purchase a "full retail license" for Windows Vista Home Premium Edition and then update the product key.
How to purchase Windows Vista Premium Edition (Full Version): http://www.windowsmarketplace.com/details.aspx?view=info&itemid=3335824
Update Your Product Key in Windows Vista: http://www.microsoft.com/genuine/selfhelp/VistaPkuinst.aspx
The least expensive option, of course, is to order the Acer Recovery Media.