Problems in disableing auto fill in

[Garry]

Netscape Version 8.0.3.3.

can any one of you tell me how to disable auto fill in this browser.

i have tried the following:
Tool->Options->Privacy

in privacy setting i have cleared the following:
Page History
Search History
Datacard Manger
Passcard Manager
Download Manager History
Cookies
Cache

then i close the browser n relaunch it and go to yahoo try a new search and it shows my previous searchs. not only when i search, when i send email also as i type email address browser starts to fill that too.

so, can anyone tell me how to get rid of auto fill

thanks