Hi rbwater (there is ALWAYS time for a short salutation, especially if you are asking for help on a community board. Thats a matter of politeness),
rbwater wrote:http://localhost/xampp/opencart/vqmod/install/}. The final line of the error log was:
[Thu Dec 06 20:55:00.297148 2012] [core:alert] [pid 12148:tid 1740] [client ::1:54271] C:/xampp/htdocs/xampp/OpenCart/vqmod/.htaccess: Options not allowed here
Don't install any applications in the \xampp\htdocs\xampp\ folder but directly in \xampp\htdocs\ please.
The xampp folder inside htdocs is just for the xampp related orange administration page and configurated in a special way.