I presume you're referring to the Display/Chooser plug-in.
Note the following, quoted from the documentation for this plug-in (via [F1] or here):
"Notice that <Value> and <Options> should be of the same type (e.g. both Text, both Date, or whatever data type you want). If they have a composite data type, the drop-down list displays the first text field it contains. For example, if it contains a numeric field named Id and a text field named Name, then the Name values of each of the data structures in <Options> is displayed."
Options are sorted lexicographically, so if you want to control the order in the chooser, you'll need to populate the chooser with a structure, where the first field is a sort order field (usually a numeric counter).
For best results, use the Firefox browser..