If the person who posted them hasn't responded if you sent them a message or they are awol,maybe message one of the moderators and see what they say? I know that some of the dead posts do get reuploaded.
Yes send them a PM if they're still around.
I got my first Dead Post notification yesterday. Sent back a message that I had refunded the 50 points and I guess if he really wants it he'll PM me.
I should have them somewhere in my collection, as I know I have used them. I'll try and upload them later. Anyone else wants to upload - feel free to do so.
The poster was last active around 2 months ago.
EDIT - I'm uploading the Charlene bundle to the blog now.