How to import VMG SMS from computer to mobile phone?

I used an N73 mobile phone. Due to the need of backup, some short messages are stored in VMG format on the computer. Now that I have changed my IPhone4, I intend to restore the SMS by importing VMG SMS from my computer to N73 and then to IP4. However, after trying the following methods, 1 can't be realized. PC suite can only be imported into the draft box, and the short messages in the draft box can't be imported into IP4 (only imported into the inbox). 2.Ovi suite only recognizes CSV format, so please find the solution. Thank you very much ! !