My guess is that in the WA_Globals the $WAGLOBAL_Root_URL variable is set to:
$WAGLOBAL_Root_URL = "http://localhost:8888/";
Where the site is in the subfolder "New_Site", the $WAGLOBAL_Root_URL variable should be set to:
$WAGLOBAL_Root_URL = "http://localhost:8888/New_Site/";