Stuck on installation Amd #iATKOS

Hi im new to the project them when you reply please be patient because i may not understad all of it. I try to install Lion on my Pc (Amd Athlon 64 x2 4600, 2 giga ram, nvidia grafics, and mather board ksi). Try diferent boot loaders but i always stuck. Can't install lion at all. Please help me. Try diferent forums but is always this same.





source