Two php pages and a single column

Hello all, I am having two different php pages(scene1.php and scene2.php) and in the first page i am collecting the 'firstname' and in the second page i am collecting the 'lastname' and i am using the following queries respectively in those two php pages: mysql_query ("insert into usertable (firstname) values ($firstname)"); mysql_query ("insert into usertable (lastname) values ($lastname)"); What my problem is, i want these two details to be in the same row not in two different rows as that is the case now as shown below: -------------------------- firstname |lastname -------------------------- john | null -------------------------- null | deo -------------------------- I want it to be as below: -------------------------- firstname |lastname -------------------------- john | deo -------------------------- As i don't have the idea about who is going to be the user i am not able to use a command like this in the second page: mysql_query ("insert into usertable (lastname) values ($lastname) where firstname='john'"); Can any body suggest me how to get around this problem. Does MySQL and PHP entertain this feature? I very much appreciate whomever responds Chakravarthy K Sannedhi