Unsure of Exact Process of BP Community Upgrade from 1.2 to 1.3.3

HI,

I evidently have BP Community theme parent version 1.2 and BP Community Child 1.3.3 installed. Would this explain why I'm getting the image overlay where it shows my signin name / Log Out links as I heard this was fixed from Richie some time back.

Also, I'm not real clear on the proper steps to update my parent version. Please provide detail steps. Much thanks.