Unable to set a default value for a CCK field
Simply try by creating a new (text)field &amp; choosing widget as select list.
then put in allowed values
0|a
1|b
2|c
(putting 0|a in one line,1|b in other so on..)
&amp; number of values to unlimited &amp; save
by editing, select default values from drop down &amp; save.
hope it helps..