how to use brushes in psp9?

Hello everyone, I've just come from the memories, looking for how to use brushes in psp9 ... i can't fin danything for psp9, but I found some for psp7 and 8, but when I click on the brush tool and then the place above where i can choose my brushes (artistic, media brushes, etc) I can't find any custom thing. So, I'm not sure how to use them. I did check to make sure that the brushes were in the psp9 brushes folder by the way. If anyone could help me, I'd greatly appreciate it! :)
<3 Sonya