Hey pals, how are you? well... I have a very WEIRD problem to solve.

I downloaded a song in .mpc format, right? Well, Under Win2k I tried to delete it, and i couldnt, I tried to see its properties, and i couldnt, I tried to copy it or to cut it, and i couldnt

Recently, I installed MDK 10.1. I tried to delete it using Konqueror and i couldnt
On a console i tried to chmod it, and i couldnt; I got a "read-only filesystem" error
I tried to delete it using rm, and i couldnt

Note. Those actions in Linux were done with the superuser

What the fook is going on here??¿?

The filesystem may be ntfs which has experimental write support in the kernel. Sometimes when this happens you can open a command prompt in windows by going to run on the start menu and running the command 'cmd' then use the 'del' command in there to remove the file which windows explorer will not let you remove. What command did you use to mount the filesystem under linux, or paste the line in your /etc/fstab that mounts it. If you run 'mount' in a terminal in linux it will tell yout the filesystem type for all the mounted filesystems, if it is vfat then you need to mount it differently in your /etc/fstab like this:
/dev/hd* /mnt/windows vfat rw,user,umask=000 0 0

If i understand what you tried say, I say that i dont mount them manually, they "auto-mount" (as you can see i'm a linux n00b).

Anyway, I didnt understand what you want me to do now

He's telling you you can't delete the file from within Linux.

The reason for this is that the Windoze portion of your system is on the hard disk in a file system format called NTFS. NTFS was developed for WinNT/2K and then extended into XPee as the default filesystem. Linux can read NTFS, but it can't write to it safely.

What he is suggesting is that you attempt to enter a console (text command) mode in Win2K to delete the file. The file might not actually even BE there. It might be simply an error in the allocation table telling the system it is still there.

The other posibility is that the file is being used by some other app and is therefore "locked".

Try this:
Enter "Safe Mode" (if there really is such a thing) in Win2K.
Then open the Windoze Explorer file tool.
Try deleting the file from there.
If it's a no-go, then try first running a scandisk, set to repair errors, on the Win2K partition, THEN try deleting the file.