As Peggy says you open the help menu in Vue. You then click on Registed Additional Modules and select Botanica.

You will then need to copy the registration code from the e mail that e-on sent you and paste it in.

From memory I think I had to use the keyboard shortcut of control-V to paste. I know I did in Vue 7.

You could just type it in if you prefer.

Hope this helps.