Help please with track number and title

I couldn't more new at this than I am now.

I started tagging using the Amazon database.

Problem is, I will choose Track Number 4 from Cruel Intentions Soundtrack "This love", and press Ok.

It automatically changes to Track Number 1, and with a different title.

Everything defaults to the track number 1, with the number one track title.

I don't know if I'm being dense, but I can't figure out what I'm doing wrong. I thought this was a pretty basic thing to do, only to realize that I have to fix all manually.

I have over 1000 miscellaneous file in one folder, so not having to fix everything twice would be great.
Thanks. And keep in mind I'm not an expert, so detailed explanation and how to would be appreciated.

On the right side there are two buttons that can move the filename up and down, so select the filename and move it to your desired position.