Don't use spybot. It sucks. Use Ad-Aware http://www.lavasoft.nu/ It will get rid of just about everything.

As for why you can't delete those other things. It is because they are currently running on your computer. If there is nothing in the folder then the files are probably hidden from your view. Running ad-aware will hopefully fix it.

I also had this one program that would flag files when you start up so they would be deleted before they ran. Can't remember the name of it for the life of me.

And yes...all those damn processes for Norton Antivirus suck. Why couldn't it just be 1 instead of like...5 with bizzare names.