This is a lot of code that "should" work.

boot/RadarrBoot.ks

@@ -4,22 +4,36 @@
 // This script is the boot script for the Radarr 
 // series of surface scanning probes.
 
-// This section from latest docs.
-wait until ship:unpacked.
-clearscreen.
 
+// This method prints in big letters something on the screen.
 FUNCTION NOTIFY {
   PARAMETER message.
+  PARAMETER duration IS 5.
+  PARAMETER color IS WHITE.
+
   HUDTEXT("kOS: " + message, 5, 2, 50, WHITE, false).
   PRINT message.
 }
 
-NOTIFY("Program booted!").
+// This section from latest docs.
+wait until ship:unpacked.
+clearscreen.
+
+NOTIFY("Boot sequence complete, prepare to load and compile the flight scripts.").
+
+IF true { // Set this to false to avoid compiling ascent code.
+  SWITCH TO 0.
+  COPYPATH("0:/RadarrSeries/radarr.kerbin.ks", ""). // Copy over our launch script from the archive at ksc
+  COMPILE "radarr.kerbin.ks" to "ascent.ksm". // Compile the flight code into a ksm object.
+} ELSE {
+  COPYPATH("0:/RadarrSeries/radarr.kerbin.ks", "1:/ascent.ks"). // Copy over our launch script from the archive at ksc
+}
+
+NOTIFY("Program compiled and ready to run.").
 
 IF ALT:RADAR < 100 { // If our radar alt is lower than 10
   WAIT 5.
-  COPY radarr.kerbin.ks FROM 0. // Copy in a prototyping script
-  RUN radarr.kerbin.ks. // Run the script we coppied over
+  run ascent.ks. // Run the ascent stage!
 } else {
   NOTIFY("System booted but did not pass pre-flight checks, aborting excecution!").
 }