ok first if you dont have it you need the program and it is here [link]
Next after you have all that installed you download the rar file i have here and put the whole folder into C:\Program Files\RocketDock\Skins
Then after you have the folder in your skins folder you right click on the dock. Go to dock settings. Then go to style on the left side of the popup. After that you will see a dropdown box at the top find the dock you are looking for and click ok. All finished with your new dock
[link]
Next after you have all that installed you download the rar file i have here and put the whole folder into
C:\Program Files\RocketDock\Skins
Then after you have the folder in your skins folder you right click on the dock. Go to dock settings. Then go to style on the left side of the popup. After that you will see a dropdown box at the top find the dock you are looking for and click ok. All finished with your new dock