Cacti

hello, i have a problem with inatallation of PIA 2.8 under ubuntu server 10.04. after the installation straight forward as the documentation. i get only a white page if i call http://server/cacti i do the following steps: install cacti 0.8.7e apt-get install cacti update to 0.8.7g cd /tmp wget http:...

i have lode the latest scripts for the peer traffic monitoring.

i have load the xml files in the folder
and also load the php file in the folder

but i dont understand how i configure the data query for a device in cacti

can everybody give me a example for it