Rounded tabs with pagecontrol delphi 5


I want to start of with a big compliment on the component package! I think you guys did a great job. I'm having a little trouble styling the pagecontrol the way I would like. I can't seem to get a nice rounded (like the standard) tab look and feel. The tabs keep looking like straight rectangles.
I want to style the tabs with my own color scheme but also would like to remain the original rounded look and feel. Can you give me some suggestions?
Regards Toine