anyone feeling generous-need help with script

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I have a almost fully working script except one part, i need to upload for the start of our football season within the next 24 hrs.

It is a football team tipping script but i need an editable datagrid within a form, so a user chooses a round number form drop down list,and the editable grid shows (8 team names in pairs-home/away)with no page refreshes. the user then ticks checkboxes next to the team they want to win then types in username and password submits to update DB. I am trying to avoid a login page. Also the grid cannot be updated if a round is closed (as in if round== closed in the fixtures table)

 

I have had no luck with this and even thought about rentacoder but i dont have the time-- willing to pay if i have to as long as its done very soon, otherwise i will miss start of the season and then i have 12 months to figure it out until next season.