Okay, I found the SDFix in safemode following your guidance. When I got the prompt that says "Type Y to start, A to make a log, and N to exit," I typed "y," and when I hit enter, the program shuts down. Or at least I'm assuming it shuts down because it completely disappears. I'm not sure what I'm doing wrong.
Below is the Avenger log from when I tried to have those two mysterious files removed from my desktop. In Avenger I typed in "Delete these files," or however you said it on the other page, and then ran it. It basically says it can't find them.
Logfile of The Avenger Version 2.0, (c) by Swandog46
http://swandog46.geekstogo.com
Platform: Windows XP
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Script file opened successfully.
Script file read successfully.
Backups directory opened successfully at C:\Avenger
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Beginning to process script file:
Rootkit scan active.
No rootkits found!
Error: file "C:\Documents and Settings\Charlie Kierscht\Desktop\CAGHQ7GL:Zone.Identifier" not found!
Deletion of file "C:\Documents and Settings\Charlie Kierscht\Desktop\CAGHQ7GL:Zone.Identifier" failed!
Status: 0xc0000034 (STATUS_OBJECT_NAME_NOT_FOUND)
--> the object does not exist
Error: file "C:\Documents and Settings\Charlie Kierscht\Desktop\CATOMXHN:Zone.Identifier" not found!
Deletion of file "C:\Documents and Settings\Charlie Kierscht\Desktop\CATOMXHN:Zone.Identifier" failed!
Status: 0xc0000034 (STATUS_OBJECT_NAME_NOT_FOUND)
--> the object does not exist
Completed script processing.
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Finished! Terminate.