inherited a mdb (1 Viewer)

inherited a mdb of about 150 names and addresses and saved it in accdb.
I am trying to spruce it up. On the main form I put a cmd button.



I want it to find all the names with the same letter, and then go to datasheet view.

No matter what I try fails. Any ideas?

I have a form, with a listbox of all names.
a list of Letters, click the letter list ,the names filter down to that 1 letter.

on AFTERUPDATE event of the alpha list
lstNames.rowsource = "qryFindLastName"

qryFindLastName = select named from tNames where [last] like forms!myForm!lstAlfa & "*"