Thanks to everyone that have replied. I'm more tempted to buy PhotoPost for its more features and since its the main product, there is more chances that it will have more updates than the other (that just my guess).
In terms of the installation and those first procedures to integrate PhotoPost and vB3.5, let say for example that I want to integrate the exact colors of my board (StyleSheet), users/db, the icons/smiles, header/footer/navbar, and the WYSIWYG editor. Can that be done easily? Like for example, a default option to integrate to vB3.5? If it can integrate that things in a easy way... I buy PhotoPost right away.... That's the thing I care most.... painless integration with my live
vB 3.5 board.