For best results you should answer all questions. We don't ask needlessly.
Post the full model number of the IDE enclosure. You may have gotten hold of an old model that is not 48 bit LBA compliant. That means the enclosure can't configure any hard drive larger than 127GB.
While you are at it post the full model of the hard drive.
No need to do that. Once the disk is properly configured it should show up in Disk Management where it can be partitioned and formatted.
If the drive is shared with a Mac and you need to format FAT32 then you may need to use a third party utility From the WDigial website.