Alternator Replacement

My friends daughter needs her alternator replaced. They asked me to help. I have done 6 alternator replacements in the last 10 years, so I know something about it. She has a 2003 Elantra. Where is the alt. located and how many bolts hold it on? Is it two bolted with a serpentine belt or thin single serpentine with a third bolt for tensioning? I have the specs for belt tighting and the gauge for setting the tension. Do you have to lower the motor for replacement? Any help would be appricated. I'm doing this this saturday Nov 5th.

Denny