BBCode issue with phpbb3 to vBulletin import
 

I have imported my phpbb3 forum into vBulletin 3.8.4. The import was flawless apart from the password issue (which I fully understand is necessary) and a problem with a custom BBcode.

The code on my phpbb3 was [youtube] which allowed me to embed youtube videos into the page. Unfortunately when the import went through all of the [youtube] tags became: [youtube:lwn20urj][/youtube:lwn20urj] [youtube:354l37o2][/youtube:354l37o2] etc.

I would like to make all of these youtube links work again if possible. If you could provide a script I could use I would really appreciate it.

I have searched and found scripts and solutions which are close to what I want. But the problem I run into with them is that the forum has been active since the migration* and I already have a functioning [youtube] BBcode on vbulletin. I dont want to fix the old ones and break the new ones at the same time.

Any help on this would be greatly appreciated!