Generally, you should not use Titanium to restore any system files between Froyo and Eclair, and probably between vanilla android frameworks and proprietary HTC frameworks in xtrROM.
If you want call history and SMS messages brought over, use Call Log Backup & Restore and SMS Backup & Restore. Google will sync contacts just fine without having to restore them from Titanium, as well as Calendar items.
So I
dedicated a few hours to get xtrRom working. (Froyo -> Eclair) And it was an
epic FAILURE!!!! Arggg I got so angry by the end of the night.
First, I backed up in two ways. Titanium backup to make sure everything is securely backed. Second used SMS Backup and Restore and Call Logs backup and restore to save my messages and call history. I also cleared out my Gmail account to only include the numbers that mattered in System Contacts so Gmail syncs them first.
Second, before I wiped, I made a nand backup so I can revert back to FroShedYo in case things go wrong.
Third, epic wipe. Flashed xtrRom 5.0, and reboot. Voila, it worked. The phone signal came back on, 3G signal worked, Wifi worked. Perfect.
Fourth, I used
Titanium backup Pro to restore my applications. I specifically went through the batch list to make sure none of the Cyanogenmod settings were being copied, neither the contacts nor the any sorts of history records that the phone previously had. I only restored the ones I've downloaded through the market.
Fifth, I tried to send texts and check emails.
Everything worked. UNTIL THIS TIME.
The problem came along when I started to work on the
key elements of restoration: SMS and Call Logs. I used SMS Backup and Restore and Call Logs Backup and Restore to restore the history back again. (This was tricky. First, it wouldn't recognize any of the backup files I've created. I eventually found out that the directory the program was reading is different from how Eclair reads. The correct pathway is sdcard/SMSsomethignsomething, not sdcard/sd/SMSsomethingsomething)
I restored everything back and was partially satisfied with what I've had. First,
SMS Backup and Restore does not restore MMS (picture, video). Second, all the
call logs that are restored are just displayed as phone numbers, not the actual contact pages! Also, it took a while for my Photo browser to display the files in SD card correctly. At first, it would just say no pictures or videos found. But eventually it somehow worked and I was happy with the speed of pictures loading. It was so much better than the stock 2.2 3D gallery. The biggest problem was this.
WHENEVER THERE IS A NOTIFICATION, IT FROZE MY PHONE. Whenever I get a text and notification pops out, the phone freezes. Whenever I get an email, the phone freezes.
There was absolutely no way I was going back to xtrRom with this type of problems. It's just too much of hassle. Only thing I really like about xtrRom is speed and smoothness. Otherwise everything else is just a lackluster.