To compile latest Scripts for ArcEmu follow this tutorial.
First compile ArcEmu and dont move the files since as ArcEmu-World.exe or ArcEmu-logonserver.exe
Next go into the Trunk folder of your ArcEmu SVN then go into SRC then Scripts
Now you should see scripts2003, scripts2005, scripts2008. Double click the one that goes with your Windows Visual Studio.
Change from Debug to Release and Build it.
After It's done hopefully you compiled all or had to errors.
Now you'll find a folder called Script_Bin in your Bin folder where your 2 .exe's are.
If you want Sun++ Do the same but rename Scripts_Bin in your folder to Scripts
Now There should already be Sun++ SVN already in the latest ArcEmu.
Do the same as above then you should get another folder in your Bin Folder called Scripts_Bin Copy that over and place the other files in your Scripts bin that we renamed in there and place in your Emu folder.
"Note: I'll put in some pictures"