Not sure what you are asking...
IF you are asking for an input box to open asking the user to enter some bit of info to limit the query on then try this:
Open your query, in the field that you want your user to enter limiting data into put something like this:
[Enter info]
in the criteria field. If I am not answering your question please post more info!
HTH,
jbehrne
If at first you don't succeed, call in an airstrike. - Murphy's Laws of Combat Operations