Questions about Tomcat Cookies

[am...@realityinfo.com]

Hi,

I have used tomcat as standalone and w/ apache also.
In my applications , session tracking is working fine.
To the best of my knowledge , Tomcat does session tracking by combining use of
1) Cookies 
2) URL re-writing.

My browser alerts me , when tomcat tries to set the cookie.
But when i see cookies folder of my Win NT machine
(C:\Winnt\profiles\Administrator\cookies) , I didn't found any cookie by name 'JSESSIONID'

MY QUESTIONS ARE : 
1) If the cookies are not found in the directory , where are they ?
2) If I disable cookies in the browser , still session tracking will work ?
3) What exact combination does tomcat uses of cookies + URL re-writing
4) If Tomcat is used with Apache , then which one sets the cookies ?

TIA & Regards,
-Amit.
Sansui Software Pvt. Ltd.