You really need to rewrite your description. I also advice you to stop using php code.
The problem I'm noticing is you don't have a "MapsFolder = "maps" line above your "StartMap="01.map"" line. You're also using a lowercase m for "main".
It should look like:
<Main
Name="An Unknowed Path"
Author="Jens"
ImgFile="story.jpg"
MapsFolder="maps"
StartMap="01.map"
StartPos="PlayerStartArea_1"
/>
As for you're description, you might want to make it look something like this:
You have been walking around for a while, But eventually you came across a castle.
You knocked on the door, but you're knocks were answered by a weird creature, and it dragged you away.
You woke up in a bed...
Its hard to see the truth when you've been blinded by lies.