http://insecure.org/nmap/install/inst-source.html
^^ just go through that site.
in normal way if u extract the contents of the file using:
Code:
tar zxvf /home/calebr/acidrip-0.14.tar.gz
inside there should be some README,INSTALL etc files that explains the method.
normally ./configure && make && make install.
AND never remove the extracted source-as it may contains the "make uninstall" or similar scripts to remove the program if ever yu wants!
If you are using a distro,use its tool to get the software installed from its repository