I tried this on my OG Droid. It is rooted, and running Gingerbread. However, I do have a custom ROM on there, but OS is 2.3.7
When I tap camera, and tap the last picture taken, I am given the choice of "gallery" or "quick pic". If I choose "gallery", it opens the picture in gallery screen mode, where I can "swipe" to see other pictures. If I tap on screen, at top left, there is a "picture" icon. Tapping that opens the gallery in the format you are used to.
On my daughters Stratosphere, running 2.3.5 (un-rooted, totally stock) when I open camera and tap last picture taken, it opens full screen, with camera scroll bar (all pictures that she can scroll through) on the bottom. No grid unless she goes in through "gallery" app.
I am hoping someone with your model phone helps out....