Whilst working on the importer I found a small issue with the bbcode to html parser
It seems that a lot of other forums allow the bbcode url to look like
[url]www.example.com[/url]
Which the parser will not convert
Suggested change
Add
'/[url](.*?)[/url]/is',
to $in and
'<a href=”1″>1</a>',
to $out
Alex