Help with Autorun

Hello everyone, this is my first post on this website. I've been using PortableApps for a week or two, and am incredibly pleased with its functionality.

However- I cannot for the life of me find out how to get the AutoRun to work. I'm not the most technical person, and I see the file on my drive (it has Setup Information underneath the main title). Can anybody help me get this feature to work?

I have a Sandisk Cruzer Micro 2GB, if that helps at all or is necessary.

Thanks.

J_Freely