Convert Bitmap to JPEG?

A friend of mine recently sent me a handful of digital pictures within the body of an email, I would like to get prints of the pictures through the CVS (like Walgreens or Jewel Osco) website buyt the site wont acknowledge the assumption is that this is because they are in bitmap format, anyone know how to convert them into JPEGs? Thanks!

You can open the pics with mspaint and then choose save as, it should let you select .jpg as the file type. This works for me and I'm running XP sp2.

Cool thanks a lot...

If you want to convert a batch of pictures, you can use irfanview.

It is freeware and it works very well.

irfan view is awesome. very simple and powerful