Here is the infinite scroll presets for the Canvas Theme (Woothemes).
- open your wordpress admin panel
- go in the woothemes Theme Options
- under the Display Options of the Canvas Theme, select "Next/Previous" as Pagination style.
This is a very important step.
Then, use the following informations to configure Infinite Scroll.
Content Selector : #main
Navigation Selector : div.nav-entries
Next Selector : div.nav-entries a:first
Item Selector : #content div.post