Jpeg and Tga

I've seen many homebrews load the tga or jpeg file formats for images and I wonder how to do this.
I've searched through the wiki because I heard there was a lijpeg but couldn't find it. No idea about tga.
What libraries are used to load those formats? And how can I use them?

Thanks in advance

For libjpeg just go to [sourceforge.net]

wiixplorer is has a tiff and a gd port. using those, libpng, and libjpeg, you can convert between a good amount of image formats.

jpeg, gd, tiff, I think I'll start there, thank you both