Technofile

I have a Dell xp (home version) from hell. My first question is......I have some pictures on a cd from walgreens. My cd drive is working. ( I can play music ) I put the walgreens cd in the drive and downloaded it to my pictures. Since the cd was dated and not named, I couldn't find the pictures. I inserted the walgreens cd again and it would not work. Is there a run command that I can use to start the cd drive, or is there a setting on my computer that I can change? I finally found the pictures but this info would benefit me in the future.
2nd question........
I downloaded Mozilla Firefox. I like it but am still getting used to it. ( I am a creature of habit ). My daughter sent me an e-mail with an attachment of pictures of my grands. Using Firefox, how do I save the pictures to my computer? I could easily save e-mailed pictures with Internet Explorer. I can't figure out how to save e-mailed pictures to my computer using Firefox. I tried help but maybe I didn't word it correctly. I am a novice here, usually learn by trial and error.
Please give me detailed instructions. Any help will be appreciated. Thanks