Thanks your fast reply!
I try to follow you...
So I have these:
Typename: "probetype"
Parameter: "parameter1" with "yes" and "no" values.
the product type when set up has a field for the flypage, enter the file name.You ment the bottom of the config page of the "probetype" type page? (I did as the same way as use to on the category page)
The fields would be the name of the icon without the extension and the value set would be yes or no.Sorry I cant follow this...

You mean that the icon should be named "parameter1_yes" and parameter1_no" ?
My main questions are:
What should I put into my product flypage (I am using your great extension!) ?
Should I modify the type fly_extension code?
Could you give a exact sample with those details:
Typename: "probetype"
Parameter: "parameter1" with "yes" and "no" values
Flyextension: fly_type.php placed in the administrator/components/com_virtuemart/html/templates/
Icons: in the components/com_virtuemart/shop_image/product/ (but not sure about the names...

)
Thanks a million!
( You helped me a lot, and use you extension (lightbox) so when my PayPal acc would be finished I will donate your work. Thanks again your great job! )