Problem displaying page correctly, footer not at foot

[smju]

I am having a little problem and don't know what the solution is, if there is one.

I have a php program that has 2 parts. Part 1 displays a basic form asking the user to select a member name for reporting upon. This then passes the selected user back into the same php program that then runs part 2, that produces the report output.

In both cases I make use of a basic vBulletin base template in order to have the output display looking like part of the Bulletin Board.

Part 1, runs through and correctly displays the Bulletin Board {i.e. BB Header, ?my output?, BB Footer/Trailer}.

Part 2, however, displays the BB Footer / Trailer to the right of ?my output? instead of at the bottom.

A quick explanation of the main php file:
All the ?doing? is done inside the SWITCH statement. The first time through the DEFAULT is executed. The second time through, CASE 1 is executed. In Case 1, I have tried (with no difference to the output) putting Form and Body tags around the output report

Here be all the code:

This be the vBulletin Template

This is the php code file

and here be screen shots of the results:

This is the correct result from the SWITCH, DEFAULT

Incorrect display of SWITCH CASE 1 {left hand side of screen}

Incorrect display of SWITCH CASE 1 {right hand side of screen}

As mentioned above I have no idea why, if anyone has any suggestions as to how to fix ?Part 2?, I would be very greatful.