Learner, you've already been told a couple times how to get Infinite Scoll working with the reBOOT template.
Go here, get the files at the bottom of v2 FAQs tab. Upload them after you have installed the Infinite Scroll module.
To modify the products layout to your requirements, you need to modify skin/reboot/modules/Infinite_Scroll/product.tpl
Infinite Scroll is enabled on the
demo. Note, Grid/Row products view switching is not possible while you are in infinite scroll mode.