Man I almost broke a controller trying end my Marlins 10 game losing streak. It's one of those streaks where you feel like it's just the CPU being the CPU, and when it's time for you to lose, you will lose.
/rage
You shouldn't be working with bitmap images. You should be working with either DDS files or any format that allows you to have an alpha image for transparency :)
The .iff files require you to have the .cdf file in the same directory when you edit them. For example, if you wanted to edit smalllogos.iff, you need to have smalllogos.cdf in the same directory.
I think the issue lies more on lining up the facial features on the face you want to make over the existing face you're modding over. This way you don't get the nostrils/mouth/chin stretching out and looking irregular. It's how we used to do it back in the days of MVP 2005 when we couldn't edit the headshapes before. We'd look for a face/headshape and mod over that, making sure the face we made fit properly over the headshape the texture would map over.
Not sure what you are asking with a 3 logo file. If you're talking about uniform_xxx.iff:
One logo goes on the manager's jacket, the other is the team's logo shown on replays and the last one is the one that shows on everything else