Funny that you mention that, I had exactly the same problem. We didn't use video tags, just the [youtube=title]videoid[/youtube] thingy which caused above mentioned problem.
I made a script for myself which changed all [youtube]...[/youtube] tags to full urls like
http://www.youtube.com/watch?v=*videoid*
to solve this problem. I attached it below.
USE AT YOUR OWN RISK!
Backup your database before running the query, disabling your forum might be a good idea, place it anywhere and delete it afterwards.
Edit the file before you run it with your database credentials and modify the table-prefix/name accordingly. Hit the "continue" link until the script doesn't make any more queries.
Oh and I had troubles with singlequotes in postings which messed up my query, so I simply escaped it. I didn't discover any problems with that, keep in mind that if your language makes excessive use of the ' character, you might want to find a way around that, I did not.
Will only work with old youtube tags in the form of:
Code:
[youtube]6mXM-oGggrM[/youtube]
and:
Code:
[youtube="hey check this out!"]6mXM-oGggrM[/youtube]
If you used a different tag, send me a PM and I try to help you out with the correct replacement.
Thanks for your feedback
The user-link will only display the profile page of the user, not a specific video. Which means, if that particlular user uploads a new video, the new video will be shown on this site. I'm not aware if the vB video tag translates this kind of url too, I find it rather unintuitive and uncommon and due to the lack of a video-ID in the url, it's not really supposed to be embedded
