Please stay calm and follow this guide: http://www.hard-light.net/forums/index.php?topic=78710.0
Do note that we cannot teach you the basic computer handling skills you will have to have in order to follow that guide. Unfortunately, the online installer does not work at the moment; so doing it the manual way is the only way right now.
What do i click in the Launcher to select Blue Planet? There are several buttons.Thanks
Go to the "MOD" tab. Click on "Select Mod". Select the blueplanet or blueplanet2 directory. Then click on the "Browse" button, and select the fs2_open_3_6_17_BP executable. Then click on the "Video" and select your preferred resolution. Do take care to set the color depth to 32 bits. Then go to the "Features" tab, and select the following:
With "List Type" set to "Graphics":
Enable post processing
Enable soft particles
Enable FXAA antialiasing
With "List Type" set to "Gameplay":
Use 3D models for ship selection
Use 3D models for weapon selection
Enable 3D warp
Then start FSO by pressing the "Run" button. If you've followed the install instructions correctly, BP should now be the active mod. For other mods, use the "MOD" tab.