Andrea Mazzoleni help please!

Andrea, you seem quite knowledgeable about all this stuff, and you are kind  
enough to spoon-feed knowledge to us Linux Laypeople...From one Italian to  
another, please help!
 
Is there some site somewhere with a tutorial on how AdvancemameCD  works?  
I'm trying to make a bootable hard drive partition, not a CD.   I was able to 
make the CD... I figured that part out on my own.
 
I've got a big external USB hard drive I'm using.  I have it  partitioned 
with a 50GB primary partition and a 180GB extended partition.   I have all my 
ROMs on DVD-ROMs, which I have copied into the extended partition  of this drive. 
 I'm using the space in the extended partition to do all the  work; eg. 
creating disk images, etc.
 
I've created a disk image containing all of my ROMs, and the ISO file is  
over 10GB (way too big for a DVD+R).  The primary partition on my external  drive 
is unformatted.  What's my next move?
 
-RCalabraro