debian - plesk 8 install

[danliker]

i try to install plesk 8 on debian sarge,

tomcat install faild and psa-php4-configurator not found ....


Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
psa-tomcat-configurator: Depends: tomcat4 but it is not installable
Depends: tomcat4-webapps but it is not installable
Depends: tomcat4-admin but it is not installable
E: Broken packages

--

Err https://autoinstall.plesk.com PSA_8.0.0/ psa-php4-configurator 1.0.0-debian3.1.build80060331.13
404 Not Found



any hints someone ?