Help to make round corners

[Miaka]

Please can anyone teach me how to make round corners using PSP6?
I wanted to make something like this
http://www.geocities.com/gacktshrine/site_map_top.jpg

with this
http://www.geocities.com/gacktshrine/banner_test.jpg

Thank you.

Miaka

[RedHat]

I ain't sure what you mean, do you wanna make something like this (http://dimensions.netcabins.com/banner_test.gif) ?

Could you give some more explanation ?