Suggest Treatment For Severe Pain In Knee After Graft Surgery

I'm a 23 year old male and have had three ACL reconstruction/revision surgeries. A Hamstring graft surgery in 2007, a bone-patella-bone in 2008, and after no progress post-surgery, a cadaver Achilles Tendon "double-bundle" revision in December 2009. I am still having severe pain within the knee, on the exterior of the front to inside (of leg) portion of my knee, my patella bone/tendon, high levels of instability in normal activities (walking, stairs, etc.), consistent popping in my left (injured) knee, left hip, and right (uninjured) knee, as well as pain where there are my two tunnels and incision points on my tibia. Are there any other options, surgically or otherwise, that can get me back to my desired level of physical activity (sports, running, general all-around comfort), or have I essentially used up all options and cannot hope to regain my previous high level of physical activities?

Thank you in advance.
Matt