Need a few pictures converted to CMYK format

[Tommy Patton]

I don't have photoshop or any tools available to me to convert files to CMYK format from RGB. Everything I've tried hasn't worked and I need these done to send them off to be pressed (it's my bands cd cover and cd print). If anyone could do this for me it would be greatly appreciated.

 

[Tommy Patton]

Oh and I need 2 files changed to 300 ppi and set to certain dimensions. It shouldn't distort the image much so it'd be fine if someone could do it for me