An example, step-by-step, showing how I regged the program
on 2 Feb, 1997:

You can do this exactly the way I did it, if you set your date
back to 2 Feb, 1997. Delete the webforms.mdb BEFORE you set your
date back, because the program deletes itself in this version if 
you screw with the date (set it back).

Start the program, get past the nags.
Start the keygen, to see where I am getting the reg info from.
Move the keygen off to the left side, so just the important stuff
shows.
Now, from WebForms:
Select Help|Logo... from the menu.
Hold down Shift and Ctrl while you right mouse click on the logo.
A messagebox will come up with the pro key. Write it down.
Click okay, then click on the logo to get rid of it.
Select Help|About WebForms... from the menu.
Press Shift and F9 at the same time.
A dialog will come up.
Put in the pro key from above. You are now regged for the Pro version 
as soon as you type AGREE in the next dialog.

The reg info is stored in webforms.mdb.

I know all of this seems complex as hell, but to put it mildly, the
reg process itself is a complex motherfucker I spent 4 hours on, so
I don't feel like discussing this at length. Cool? The author of this
program has created one of the nastiest reg schemes I've ever seen.

Saltine
Phrozen Crew '97