Restoring Chat.db with iChat files available

Hi,

I've accidentally deleted a Conversation on my MacBook's iMessage.

I was able to recover the Conversation files (with a file recovery software) but I'm having trouble making iMessage add/merge to my previous Time Machine backup (around 9 days old). However I wasn't able to recover the Chat.db.

So basically I only lost a week of chatting on that one Conversation.

I wanted to make iMessage rebuild that Conversation with the existing backup and the recovered iChat files.

Is there a way to make the current Chat.db recognise and add the Conversation files that I've recovered?

Thanks in advance!