Firefox with apt-get

Hi Tried to install Firefox with apt-get. "apt-get install MozillaFirefox" But the ver of firefox there is just 1.0.7, is there another way to install the firefox with the apt-get? How can I install it in another way if it is not possible with apt-get? Have tried to just download the compressed file from mozilla.com and have been able to get 1.5 to start but what is the right way to install a program from a compressed file (where do I put it and so on)? Have no knowledge in the world of Linux, but hoping to learn :)..... /Per