Ok, you need to open the file in a text editor, such as windows notepad. The easiest way is to locate the file (on you Desktop, in this case), right-click on it, choose "open with" and click on "notepad" from the drop-down menu.
After notepad opens, to will see the text of the pgn. highlight all of it and copy it to clipboard. Then go to where you are making the board (where you had previously put the name of the file) and there paste the text of the pgn from clipboard.
I am trying to post one of my completed games as a pgn file. I downloaded the game to my desktop. Then I copied and pasted the file name from there into the pgn box in the blog form. When I click continue,I get an error message saying incorrect pgn file name. The file name is Kanon_vs_laser43_2007_09_22.pgn What am I doing wrong?