vps:/home/duke/aa/scripts# sudo apt-get install php5-cgi
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
  php-pear
The following NEW packages will be installed:
  php5-cgi
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 4912kB of archives.
After this operation, 10.6MB of additional disk space will be used.
Get:1 http://security.debian.org lenny/updates/main php5-cgi 5.2.6.dfsg.1-1+lenny10 [4912kB]
Fetched 4912kB in 4s (1000kB/s)
Selecting previously deselected package php5-cgi.
(Reading database ... 46685 files and directories currently installed.)
Unpacking php5-cgi (from .../php5-cgi_5.2.6.dfsg.1-1+lenny10_i386.deb) ...
Processing triggers for man-db ...
Setting up php5-cgi (5.2.6.dfsg.1-1+lenny10) ...

Creating config file /etc/php5/cgi/php.ini with new version
vps:/home/duke/aa/scripts# which php5
vps:/home/duke/aa/scripts#