if you used the method I described you can change the color by writing an ! symbol at the front of a text line in the text container, followed by the number that resebles the color (see e.g.
msg).
example:
1
!2this is some test text blahblah blubb
if a line in the text is so long that it is automatically seperated into multiple lines in the msgbox or whatever, you have to write !2 in front of the first word which is in the next line again.
for the "animations" have a look at the first adventure map in the editor.
these commands could also be useful:
http://www.stranded.unrealsoftware.de/s2_commands.php?list=sequences
+
unitpath
and I dont think there is a script command to return to the main menu.