Prerequisites to use convert_wysiwyg_html_to_bbcode

[benFF]

Hi guys, Hope you can help me

I've integrated the Wysiwyg editor into Photopost classifieds, with the editing bit working perfectly, but have hit a major snag with the database writing.

Basically when I run the form output through convert_wysiwyg_html_to_bbcode, nothing gets changed and the html isn't converted to BBcode.

No errors are returned, so I'm assuming that perhaps I haven't initialised a variable somewhere - thus my question is simple

Which variables / files need to be included for the convert_wysiwyg_html_to_bbcode function to work properly?

thanks!