asus G60VX + 16.04 help much needed.

OK i will try to give as much info as i can so this be alittle long so try and stick with me. OK i have a asus g60vx as stated and have a Intel® Core™2 Duo CPU P7350 along with the NVIDIA® GeForce® GTX 260M with 1GB GDDR3 VRAM. Heres where im at and stuck at, i have reformatted the hard drive and re installed 16.04 two times and get the same stuff showing up, along with not being able to run the driver for the nvidia even though i have downloaded it still dosnt work, i am not able to download anything from ubuntu software center, i am not able to download anything running the command lines, and i can not install any updates. I have included some screen shots of my terminal and some other stuff to maybe give you all some idea, my question i am i going to be able to get this to run right or will i need to downgrade my os to say 15 or 14, i do not have the money to buy a new laptop at this time or within afew years so im stuck with this old lady, i time i plan to put in a 3ghz intel and 8 gigs of ram, so shes gonna stay for like i said afew years till i have no choice but to replace her.