Max rank by group

Hi all,

Working in Excel 2010.

I have a list of names and the number of times they came to us. I want to flag their latest appointment. I'm more of a visual person, so hopefully these screenshots help.

Trying to make this:
\1

Look like this:
\1

I'm really under the gun here, any help would be greatly appreciated.

Crossposted to: http://www.mrexcel.com/forum/showthread.php?t=561368
If anyone helps at either place, I'll be sure to update both threads with the solution and mark as [SOLVED]. I can't go to bed until this gets resolved