>Pardon my ignorance, but what is the easiest way to convert PNG to BMP? Can MS Paint do that well? How about free tools you may be using?

For conversions, try IrfanView (donationware), available from shareware/freeware sites -- e.g., www.tucows.com.

For painting, try VCW VicMan's Photo Editor (freeware, last time I checked).

-m.