Welcome to the board...
Sure, the Macro Recorder is your friend...
In Xl2003, click tools - Macro - Record new macro
Give it a name and click OK
Then do the Find/Replace as you normally would by hand.
When finished, click Tools - Macro - Stop Recording
You will now have some code to work with, giving you basic syntax example.
In 2007 or higher, the Macro Recorder is on the Developer's tab.