Does anybody understand how to integrate the joomla search functionality with customly built components? Or are conscious of a tutorial/information page using the information I'd need?

I would like the search to pickup information from my components, presently it's only coming back data from articles, web links, contacts, groups, sections and news feeds. I've got a couple of custom components that we require the search to locate leads to.

If anybody may help, that might be great! :)

Generally, you have to write searching wordpress plugin for every component that you would like to increase the search to. There's a great tutorial here - http://paperwork.joomla.org/How_to_create_a_search_wordpress plugin