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Could you give us some more info to go on, e.g.

What is the error message you get from Lightroom?

When you say "don't show up in iPhoto", please post the steps you took to try to get them there e.g. plugged in camera, does iPhoto launch automatically, does it try to import them and throw an error, etc.
 
I actually just figured it out, the pics still on my camera were in Kodak's RAW format, hence iPhoto couldn't read them, and Lightroom couldn't import them. Not to worry though, used easyshare software to get them off and converted. Thanks anyway!
 
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