How to put the amaze gps software on my behold?

How should I download the software to my Samsung Behold, by PC or website? I am confused about the part where I am supposed to “hack" it using TKFile.exe and manually load the .jar and .jad files. Could someone please tell me, step by step, what to do to get the amaze-gps software onto my Samsung Behold? I am really needing a GPS software on my phone for work and should not have to pay $10/mn for Telenav when I pay $20/mn for internet service.