Here are some activities, if you enjoy that kinda stuff...

1. Download and install Java Development Kit 5.0[JDK]
2. Download Tomcat 5.xx
3. Download Tomcat Admin
4. Select some place on your hard drive
5. Unpack Tomcat
6. Unpack Tomcat Admin (say NO to a couple questions about replacing files with duplicate file names)
7. Locate tomcat /bin directory
8. Run startup command line in tomcat /bin directory (startup.bat for computer with Windows). Do not close black window, - it's Tomcat running... If you do not have black window - something went not exactly as it suppose. Nevermind... first make sure that your followed all the steps CORRECTLY!
9. Open your favorite web browser, it better be Firefox... just kidding
10. Type http://localhost:8080 in the address bar
11. If the page with Tomcat picture will appear... everything fine, so far. If not, - see explanation in step 8.
    
12. Run shutdown script from tomcat /bin directory... We know it works now, it's time to configure some little stuff.
    
13. Locate tomcat /conf directory
14. Find file tomcat-users.xml
15. Use your favorite text editor to open it. IF YOU TRY DOUBLE CLICK ON IT, - IT IS NOT DANGEROUS, BUT IT WOULD NOT HELP.
16. to be continued