Add a custom field to virtuemart checkout process

On my site here <[login to view URL]> I would like to add another field infront of the CUSTOMER NOTE. I have a field in my database called corder_no. It is in the table vm_orders I have tried to add the new field into my php code so that a user can enter a value into this feild but it isn't getting passed to the database. Can someone help me figure out why the variable isn't getting put into the table? This thread outlines everything. I know its a lot of reading and I would be greatful if someone could help me work this one out? [http://www.experts-exchang<wbr />[login to view URL]<wbr />Developmen<wbr />t/<wbr />Web_Lang<wbr />uages-Stan<wbr />dards/PHP/<wbr />Q_26964116<wbr />.html#a357<wbr />61697][1] [ ][1]