Step by step manually install a package

[diaakhalil]

Dear All,
I'm a new user in the pfSense world although I read about it long time ago, but since I got in it and I liked very much enough to replace my TMG firewall server with it… I'm using the newest release 2.1.5 x64 version...
I tried to search on this powerful board to find out how can I manually install a package, but there was no full answer to follow to achieve this purpose.
So, can any one tell me what should I do to manually install a package?
To make it easy to help me: I'm trying to install the stable version of suidguard 3.4

Thank you all so much in advance...

Diaa Khalil