"Water damage - What to test?"に関する回答Water damage is always tricksy because you're not sure what the extent of the water damage could be. Check out this great answer by oldturkey03 here How do I clean corrosion after water damage? he gives some tips on how to deal with water damage.
"Can't get my eject button to click"に関する回答Yup! Check it out here http://support.xbox.com/en-US/xbox-360/disc-drive/how-to-manually-eject-a-disc-906935