go to the folowing directory c:\Documents and Settings\llpfuser\.ssh\
In that folder there there should be a two files with the same name but one will have the extention .pub (i.e. public key). you need to copy the contents of this file into the .ssh/authorized_keys file of the user directory you want to log in as. e.g. if you want to log in as bob it will probably be /home/bob/.ssh/authorized_keys on the machine you are trying to access
