Vista - re-formatting of external hard drive to fat32

Hi, I am in need of some help. I want to use my external hard drive to hook up to my PS3 for "media playing" purposes. I have checked out various forums and was told my hard drive would have to be changed over from NFTS or whatever it is to FAT32 as the PS3 wont recognise it. I downloaded swissknife and after I'd transferred the contents of the hard drive I reformatted it or tried to. The problem I now have is that where as it used to be drive G it is now gone. I have gone through the driver list and the computer knows it is there and says it is working fine but I can't transfer anything on to it until the registry can find it. Can anyone tell me how to reassign a drive letter to it? I am at my wits end.
Many thanks.

Hello Shaftuk,

Please open the Disk Management... right click Computer > Manage > under the Storage, Disk Management. You should see your removable disk there, as Disk 1, right click it and choose assign or change drive letter. You can format it again as FAT 32 there.

I hope it will help.

Cheers...