Sorry, Davy, but Clint doesn't have a star on the Walk of Fame. The consensus is that he feels it's not worth the $15,000 it takes to purchase this "honor."
This is a question that's come up here a few times before ... you can read about it in these threads:Walk Of Fame
from 2002-2005the star that is or isn't
from 2003Does Clint Have a Star on the Walk of Fame?
From the second link above, here's a great post by D'Ambrosia:
As I have stated in the earlier thread it’s much more of an honor to be “inscribed” at the Grauman’s Chinese theater, or as its known now as Mann’s theater.
Clint’s inscription is in the elite zone exclusivly reserve for the Hollywood superstars…
Clint Eastwood, Ceremony 151, August 21, 1984
Anyone with 15 grand can "buy a star" but to be imprinted outside the theater is the real sign of stardom...
You can read about Grauman's Chinese Theatre and see a list of the stars immortalized there in this Wikipedia article:http://en.wikipedia.org/wiki/Grauman's_Chinese_Theater
There's also a good feature here:http://www.seeing-stars.com/Theatres/ChineseTheatre.shtml
If do want to check out the Walk of Fame and locate the stars of other Hollywood "legends," like Britney Spears and the Olsen twins, the official directory is here:http://www.tibp.com/cgi-bin/foxweb.dll/wlx/dir/wlxdirectory?cc=WOFAME
As for a "Dirty Harry tour," there isn't an official one. There used to be a website with lots of locations and pictures, but it's down. However, check out this thread:Dirty Harry filming locations
You could probably work out a pretty good "do it yourself" tour with the help of the information on this site (linked to in the above thread):http://www.filminamerica.com/Movies/DirtyHarry/
Good luck, and enjoy your trip!