Problem in Starting Apache Tomcat 5.5

Hello,

i wanna to work a Jsp and j2ee project with sqlserver 2005

i installed Apache tomcat server 5.5in windows xp.
when i am trying to start the service from controlpanel->services.. it says

windows could not strat the apache tomcat on local computer. for more information, review the
System event log. If this is a notn-microsoft service,contact the service vendor, and refer to
service-specific error code 0.

can anyone say what is the problem and how can i solve it?

thank you

Configuration: Windows XP