You could change the processor but, the E-450 (the one you have) is the best processor that socket type will hold already, no point. Here's what I found http://pclinks.xtreemhost.com/cpu_sock.htm#socketFT1
"I have a Socket FT1 motherboard. What can I upgrade to?
Socket FT1 holds AMD's first generation Fusion APUs.
AMD C-series 30, 50, 60 (Ontario)
AMD E-series 240, 300, 350, 450 (Zacate)"
I'm afraid you're stuck until you get a new computer