Well, it would appear that you are asking the question to which you have the answer???
You want to mount your drive. And you can mount it with mount -t ntfs /dev/hda3 /winxp/mp3s
Then this would show that you have NTFS support built into your kernel modularly, which is fine.
If you are looking to be able to mount this drive every startup, or not have to use the entire mounting line you supplied then you would need to add some lines to your /etc/fstab file:
/dev/hda3 /winxp/mp3s ntfs noauto,users,user,ro 0 0
I am not at home, so I am not sure if the mount options are correct, and I think you may have to supply a UID option for users to be able to view the files. A search on the board here will provide the correct syntax though, as this has been addressed several times.
The once you get that set up, and save it, you can mount the drive with:
If you want it to mount during startup, so it's always available, change the noauto option to auto.
You may also have to "modprobe" ntfs, with RH I think you have to put the entry into your /etc/modules.conf file.