OK, just did a nandroid backup. I would like to try a new rom, I will like to try the xtrSENSE that was referred to as before. Can someone give me a link and a quick run down to go that route and then restore my phone?
Here is what I would do.
First of all, xtrSENSE can be downloaded here:
[ROM][GPL][11/5/2010] xtrSENSE4.6.5 [cache2cache,apps2sd,oc,jit]-HTC Sense - xda-developers
Download the xtrSENSE4.6.5.zip file and get it into the root directory of your SD card - probably similar to the way that you did with PlainJane.
Restart in Recovery. Go to the Backup/restore menu and choose Nandroid backup to make a backup of what you have now.
Go to the wipe menu and choose Wipe Dalvik cache. For now, do not Wipe data/factory reset
Go to the flash zip from SD card menu and choose to flash xtrsense4.6.5.zip. After it completes, reboot the phone.
If all is well, all of your apps and data should be there. See if things are stable and you avoid the spontaneous restarts. If so, perhaps you are all set. If not, I still think that xtrSENSE is better than PlainJane at this point, so you can restart in Recovery, go to the wipe menu and wipe data/factory reset to start over from scratch when you restart the phone. You will need to reinstall all of your old apps, but as long as all of your contacts are Google contacts and not phone contacts, all of your contacts, calendars, and gmail will sync back down after the first restart, and your first visit to the Market and going to "My apps" (press menu in the market, and that should be an option) should show all of the existing free and purchased apps that were used the last time that you connected to the market with PlainJane. The free ones do disappear after that first visit, though. Purchased ones will always be there, and can always be reinstalled without having to repay for them.
Best of luck.