[Plugin: Sociable] Link to homepage

Hi there. I apologize if this question is duplicated elsewhere- I could not figure out how to search the support page.

Because of how my website is structured, I want the share links (for both skyscraper and classic) to share my homepage rather than the individual sub-pages where the widget appears. Can you tell me where I can control that in the code? I don’t want to go in and change/mess up a bunch of stuff, so I thought I’d ask directly. Thanks!

http://wordpress.org/extend/plugins/sociable/