I'm gonna be a bit lazy here, and just throw my review for both parts into one.
I wonder why these couple of episodes were marked as a two-parter? Does it save money? I'm asking because both episodes didn't feel entirely cohesive, with enough differentiation plot-wise to distinguish themselves as singular episodes, as with the last few episodes. I guess they just wanted to round off the Kobal plot once and for all.
To be perfectly honest, there's not a lot here worth mentioning. Most of the talking points revolve around someone either threatening to kill Sharon, or just generally manhandling the poor cylon. The scenes where Lee and Bill grab Sharon by the scruff of the neck and attack her are really well done. I'm sure Grace Park suffered a few war wounds during this shoot. Sharon had a lot to prove here, and I think she won over [mostly] everyone.
After an arduous trek through a curiously earth-looking planet, Roslin and her cohort of followers finally make it to the tomb of Athena. They're mysteriously transported to a remote location (an island in space? Or something?) where they discover that they're actually standing on earth (or something?). They find out the constellation they need to hunt down in order to find earth. Why don't they just settle on Kobol? It meets all of their requirements. I just don't know.
Elsewhere, in subplots across both episodes, Gaius believes that he slowly going insane...because a sexy pair of legs in a dress that only he can see told him he was so. Ya gotta love it. It turns out that head-Six believes that Sharon's baby is the revered child that she and Gaius will raise together. Interesting! I love how little Six thinks of Sharon. Total sibling rivalry.
All in all, this is an awesome episode for Sharon. But as a whole, it's a tad boring watching a bunch of people soaked to the core trudge across very familiar looking terrain. However, both Billy and Dee rise to the occasion when their respective leader isn't feeling up to scratch. I liked that.