how to install new aps ?

1- at a friend's computer,
i downloaded (to my USB pen drive) a few linux aps
(see below)
2- copied said aps to my internetless pentium 4.
3- using GNOME then terminal command line
tried to install said aps into UBUNTU 7.04
no success.

------- the aps are -------
1- rar (LINUX)
2- imagemagick
3- GIMP help file