[Theme: Gridlocked]

If someone could help me id be very grateful.

Currently using the gridlocked theme for a very basic portfolio layout.

My plan is to have 3 or 4 different categories to the left (branding, type, posters etc) an about me and a contact page. Basically i cant get my head around the widgets section and sorting out the pages.

Can anyone briefly explain (or point me in the direction) on how setting this up works?