426665 MySQL database form

I am looking to create a simple form that I can put on my site. It will simply allow people to enter a darts league in the UK. They must be able to search to see if the league exists, if not they can type in the league name, county, league owner, website, and email address I would also want people to be able to sign up for more information within the same form. I would supply the aweber code for my autoresponder. If you have any questions please use the PMB