Ubuntu help needed , keeps saying failed . what do i do now ?

Right so to keep it short .
The laptop is currently running XP , I went to ubtunu.com and downloaded the netbook remix . I followed ALL the instructions gave b the websites little helpful guides , But when it comes to installing from the USB stick it gets to 99% and says failed could not locate install files .
I have looked around te website for some help , all it does is bring me to some info on chat rooms that can be accessed via ubuntu . Well since i cant install it i cant use them , this is where you guys can maybe help . I am ever hopeful that one of you has installed ubuntu and know what to do .