Packages required for a normal application of the ATM:

Perl 5.004
UCD SNMP 3.5
Perl SNMP 1.8a4
GD 1.3
Perl GD 1.18
GIFMerge
MRTG 2.5.3

In many cases, new versions of these packages should work without any problems, while some will not.

(GIFMerge is a little hard to find. The official distribution site is at http://www.iis.ee.ethz.ch/~kiwi/GIFMerge/)