
It was really weird but this was how I got to save my Dynasty again:
First I checked my load/save screen to see if I can save. But it told me I had insufficient disk space.
Next I loaded the current roster patch provided by NLSC instead of the Dynasty game.
Then I just played a couple of "Play Now" exhibition games. After those games, I checked on my load/save screen again.
I clicked on my Dallas Dynasty and tried clicking on Save. Yep, it worked!
It was really strange. I think my computer was just playing one me since I have been playing too much NBA Live 2004.
This was after two days of experimenting on ways to restore my Dallas Dynasty.
Now I'm playing again with my Dallas Dynasty in superstar mode. It's a good thing I just have 2 losses in my second season. I'm nearing playoffs now.