My recommendation is to leave it as NTFS and read off the data instead of converting it back into FAT32. If you have problems accessing an NTFS partition, do a search on the Internet for an NTFS driver - there are versions for Win98 and Linux. Without saying, WinNT, Win2K and WinXP can read/write NTFS partitions natively.
Do let us know why you want to convert NTFS -> FAT32 and we may be able to offer more solutions.