Can you name your game saves?
Yes you can. You will need to go directly into the Directory:
C:\Documents and Settings\"Your Name"\My Documents\My Games\GC2TwilightArnor
There you will see a number of " .sav " files - "AutoSave.sav" for example. Whatever name you give the file before the .sav extention will show up in the Load/Save screen.
So copy an existing .sav file, rename it to what you want (.sav as an extension is mandatory), and put it in the same Directory as the AutoSave.sav file. Do that as many times as you want for as many sav files as you prefer. They will all show up in the Load/Save screen.
Be aware that whatever you do, the game will always create a "AutoSave", QuickSave", and "PreviousAutoSave" .sav files, even if you delete them, the game will recreate them next time it runs.
.the sucker filled up and GC2 said it was saving the game because I ran out of memory but it didn't.
That was a nasty one - drove me mad as well, as it zapped the current .sav file. They have nailed that one, so make sure you have the latest update.