well as long as we are assuming these are legal files, i will help you..if they are illegal files, please read the sticky....
.....jk, we are assuming they are legal, since i've had this problem before and any place on google couldn't help me...basically what you have to do is first download winrar....then you wanna name the very first file to a .rar extention...so if your first file is named hifreestyler.001 or .r01, then you would change it to .rar....COPY ALL OF THESE BEFORE YOU DO IT BC SOMETIMES IT DOESN'T WORK!!....
so back to this ....rename the first file that's archived .rar...then open it with winrar, or maybe you could just right click and hit "exract to xx(folder)"
it's probably going to say that it's missing information, but you just need to hit browse and select the second file...usually from there it will go by itself, but if not you will just have to find the next file for it....
this usually works, but like i said, copy everything before you try it, otherwise you just really shot yourself in the foot and sometimes it can't be reversed back to the old archive extentions.....
try that, if it don't work, i'll try and help you again!
Zac