You just need to check the distance between the tile and spaceship.
So if distance(Spaceship.X,Spaceship.Y,Tile.X,Tile.Y) <= 100
Spaceship.stop (The pathfinding one)
Spaceship.set angle towards position tile.x,tile.y
The spaceship wont collide with the tiles as they are solid. However you can turn off solid for the selected tile if you want, but you have to regenerate the obstacle map then. And in its current state if you have to many objects, your program might pause for a short time while calculating, which makes the function rather useless, as no one cares to play a game that pauses all the time :D
Also you don't have to use a "dummy" object (The red square) for you player craft. You just have to make sure that the spaceship is flying the correct way in the image. that being to the right, Like this:
Back of spaceship >----O> Front of spaceship
Furthermore I can see you have scaled your spaceship, its better to make it the correct size from start, as it will otherwise use more memory than needed. It might not be a problem now, but later on you might run into some performance problems. It can be done quite easily if you use the image editor in C2.
To do it correctly, you have to do the following.
1. Rotate all the animations 90 degree CW, so they point right.
2. For each animation scale them to the desired size and exit the editor.
3. Select you spaceship Then you can see the "angle indicator" in the middle of the sprite points in the direction of the front of your spaceship.
4. On the spaceship, you have to set the "size" to what you made it in the editor as well, as it still scales it, with the same amount as before you scaled them in the editor.