first installation

[hittolo]

hello,
i'm tryng to install letodms, i have downloaded the last package from
http://sourceforge.net/projects/mydms/files/
then i have uploaded the file in the webserver directory. I have created a file called ENABLE_INSTALL_TOOL. Then i try to install by www...install/install.php but it tell me
Error
Pear package : Log : Not found
=> Install Pear package 'Log'
I have read that it's possible to install it, but i don't understand how. I have a shared webserver so i don't have ssh access but ftp.
I don't undestad if i can install the pear package or not
Can someone help me?
Thanks