basicly the server load percentage works like this each cpu should have a max load of 1.00 and since the server the script is on at the moment has 4 cpus that max load becomes 4.00, based on some of my research when the cpu is at 1.00 that means it is processing all it can, when its at say 1.50 that means its processing and has some in line to be processed, as the server load was 126.75% before that means it was mostlikely at 4.25 or something similar. also I have worked out the server will actualy continue to run at a stedy speed at 240% anything above that and you can notice speed differences.
hope that all makes sence.