How can I get a list of all the Functions available in Excel 2003 ?

Click the Fx button next to the formula bar and, when the dialog box
appears, select "All" from the "Or select a category" drop-down field... all
of the available functions will be listed in the "Select a function" list
box. Clicking on an entry will give you its syntax below the list box and
clicking the "Help of this function" link will give you a help file on it.

Rick