I am decent at the VERY basics, but not sure about this one.

I have a table (registered_user user_name varchar(30)), and a registered_login (user_name, timestamp)).

Desired action...

User types in login, system looks to see if login exists in db (select count(*) from registered_user where user_name = ?login) and if so, log the entry into the db (insert into registered_login (user_name) VALUES (?user_name), and then goto the next page, but if not, go to another.

This is probably elementary to most, just foreign to me (and I don't want that hokey IE error that pops up; I want to design the "you can't be here" page myself).

Any and all help would be appreciated.

Thanks in advance,
ST