Custom Fields? and Search?

[baseball]

I would like to see a sample script that would allow me to ad 1 additional field to the posting section within vbulletin. e.g,

Under title I would like to see a field
name: Color - It would also be important for this field to be included when conducting a search. To keep things
simple, the name of field in mysql will also be named color.

part 2 of my request:

I want to be able reference the search command or subroutine from a separate custom 'html' page. The format would look like this.

search forum 'a' [enter keywords here] to search forum 'a'
search forum 'b' [enter keywords here] to search forum 'b'

I’m sure there must be a way to pass parameters to the search engine since it can be done with the advance option. there must be a way to hard code it presuming I have a forum 'a' and a forum 'b'

thanks.