Open the autorun (eject and re-insert the disc), click the arrow pointing to the right, choose "Verwijderen", then choose "Wijzigen" on the screen that pops up, and then look for and select the English language pack, then install. Run the autorun again, choose "Taal kiezen" and choose English.
Vista or XP. Go to C driver and open it. At top of window go to Tools, Folder Options, View tab, The the one that says hidden files and folders pick the one to show them. Then go to C:\Documents and Settings\ [ Username ]\Application Data\Command & Conquer 3 Tiberium Wars\Maps. If there is no map folder, create one. For Command & Conquer 3: Kane's Wrath on the PC, a GameFAQs message board topic titled "Global Conquest *guaranteed* win for Scrin (no cheat/trainer required!)".