(CEL) Codes

[ArticBoxster]

I do not have a multimeter. My new battery got drained over night so I was told it has to be a bad alternator. I did checked the ground wire in the engine bay and did not see any disconnection. So should I just replace both the starter and alternator? Any one have suggestions where I can get quality parts for good price? Thanks!
Buy the way, how do I use the multi-meter and how can I test the battery if engine is not running due to the battery drainage? I can purchase one from SEARS to test out your suggestions.

[Jager]

Looks like you need to get a battery charger on that battery ASAP. I'm sure your starter is OK but suspect you have a bad alternator.