I think you've left out a detail. How do you use this value list? It wouldn't make sense to use this in the same value field. In what field or fields are you using this value list?
In general terms, the value list is funciton exactly as it was set up to function, this just isn't how you want it to work. What will work is a conditional value list based on a self join relationship matching the current record to itself via a primary key.
Forum Tutorial: Custom Value List?
Knowledgebase article: http://help.filemaker.com/app/answers/detail/a_id/5833/kw/conditional%20value%20list
Hierarchical Conditional Value lists: Conditional Value List Question
Feel free to post follow up questions here if those links aren't enough to get your value lists working correctly.
fixed it! works great! thanks so much!