downgrading gmail and streetview from 2.2 version to 2.1?

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Hi all,
Can anyone help/advise on going back to the version of gmail and street view (with the arrows rather than dropping the peg man) that exists on v2.1?
Is it possible?
I have (hopefully) settled now on a rooted stock 2.2.1 unbranded ROM so just for complete happiness I wanted to revert those two back to the 2.1 version of the apps if at all possible...
I find the peg man version of streetview hard to use and the newer Gmail has this annoying huge great menu bar and arrow at the top of the e-mails.

I did try cyanogen but although it looked really nice I couldn't really get the hang of using it. I might go back to it but am so used to the sense UI now I'd probably stick with that for the time being.

Actually I installed the latest gmail app and at least it gets rid of the massive bar at the top of e-mails as you scroll down.
I'm now just hoping to replace the version of streetview installed (1.6.0.6) with the latest version that had the arrows to click on direction. I can't get the drop pegman thing to work...