Take a deep breath dude, was trying to give you info that I thought might help. Now it seems that you've presented a moving target.
I don't know what the GP is thinking, but here's my thoughts...
At first I thought your help was awesome. But then I realized it being able to filter on From: is not the same as being able to sort on From:
For example...
Joe sends me email which gmail sends to spam. Since I know gmail does this frequently with his emails and that Joe sends me email once a day, I can easily use the filter to find his message in spam.
Now comes the problem. Sally sends me an email which gmail sends to spam. She doesn't normally send me email often so I'm not on the lookout for it. I won't even think to use a filter to find her email. Only by sorting on From: and scanning through the list in Spam would I ever find her email.
I don't think the GP is presenting a moving target. He needs to be able to sort by the headers, like you can in every other email program out there.