I have made a forum, but now I like to order the messages bij reply.

like this:
message1 - name1 -
Re: message1 - name2
Re: message1 - name3
message2 - name2
Re: message2 - name3

I sort the messages bij 'datetime' now, but that wont work since reply's on an old message can be made after a new one.
And I use a parentId for this.
If you think you can help me.. plz contact me on ICQ#35000002