If you've downloaded Yahoo! Messenger and can't locate the file try the following:

1. Click the File Menu.
2. Select Find.
3. In the blank area next to Named enter:
   ymsgrmac
4. Click Find Now.
5. One file should be returned in the white area below.
6. Click on this file and drag it onto the desktop (to create a copy of it there).
7. Close the Find window, and close all background applications including your browser (be sure to fully close them, rather than just minimizing them).
8. Double-click the file "ymsgrmac" to launch the installation.