Basically partioning is where you split the hard drive into two, or 3 or 4 even, to make it act like seperate drives, though it's one.
You'll find that when you boot up in windows, you'll have 2 drives, maybe C and D.
I use it for example to split my family up, so that we can't damage each others drives, and get blaimed for it (has happened many times)
10,000mb is approx 10gig, though this will be a bit less, because there are 1024mb in a gig.
How big is your full drive? If it was 60 for example, 10 would be fine to install the operating system, and then you'd have about 50gig spare to install programs and other data which is fine
You only need something like 2gig I think to install Windows, though to keep it running efficently I'd have at least 5, so 10 is not bad at all
NTFS FILE SYSTEM
NTFS is a new standard for saving the data on your drive, compared to the old FAT32 file system, and contains new features like compressing data, having passwords, and just makes it safer if you have a large network.
You probably wouldn't notice a difference between the two though. Because it is new, I assume you do have Windows XP or 2000 or something near that to support the NTFS system.
This is taken off the google, define:ntfs
"The file system designed to the operating system Windows NT. This file system is more advanced than the FAT file system used by the earlier Windows operating systems, with regards to data structures, filenames, security and access control." "works on Windows NT/2000/XP Operating Systems"
It is actually good that you have done this, since for example if you needed to format Windows for any reason, you could just wipe the drive with windows on, re-install, and still have all your programs on the other partition
I would consider backing up though every week or so though using any means possible, of any important data, since you nerver know when a drive will go caputt.
I hope this helps