If you are going to use the specify option, you should opt to have the variable saved as text rather than numeric. Problem is that if you don't do this from the start, SPSS will get angry when you all of a sudden change it or try to write a text variable to a numeric data column. Easiest fix for that is to backup your data and start fresh by clearing the data folder--you can then merge the old and new files later on. Those text responses should be found in any of the text or csv formatted data files.
See also: http://www.empirisoft.com/support/showthread.php?p=490
Hope that helps,
Blair