posting replies

[Winnipeg Toymaker]

I am not a newbie but concerned why I am not allowed to post replies to a thread. I have tried numerous times to contact a member via PM but am told that he is not a member. I see his thread but no way to contact him.

My posting rules states I can post but never have been able to do so. can we please rectify this problem?

Thank you

The following errors occurred with your submission:

1. The following users were not found:
   1. s**tthatkilledelvis

What exactly does this mean? He has a thread in parts for sale.