Xperia X10 :: Message Restore (mmssms_bk.db) From 1.6 To 2.3?

Yesterday, I just upgraded my xperia x10i from vers.1.6 to vers.2.3 I have done messages Backup in SD card (mmssms_bk.db)however, in vers.2.3,There is no restore from SD feature for my messages?I don't want to root my phone or downgrade then upgrade as my Quota usage ( internet connection) left 2GB Requirement:1.Your phone software must be 1.6 version.2.have internet access.steps:1. install "SMS backup & restore" by Ritesh Sahu provided in market and ASTRO file manager by metago2. backup all your messages by using "SMS backup and restore" and name the backup file as 1.xml3. in Messages, click "import to SD" to backup your messages.4. open Astro, go to /mnt/sdcard/system/message/master/ and then replace "mmssms_bk.db" (in your phone) by mine (in rar)..5. go to Messages, click "import from SD" to load all the messages. 6. backup all the messages by using "SMS backup and restore" and name the backup file as 2.xml7. open Astro, go to /mnt/sdcard/SMSBackupRestore and find 2.xml8. copy the file to your pc and send it to me...9. open SMS backup & restore, click restore and choose 1.xml to restore your messages..