Welcome to the forum.
What is the data type of the CN_ID field? If it is numeric, then you must not enclose it in quotes.
Additionally, your form reference is incorrect. You have to supply the ID from the current form (frmFRONTSHEET I assume) to the form that you open (frmAddMeToTheList). So frmFRONTSHEET has to be on the righthand side of the assignment statment. So assuming that CN_ID is numeric, the code would look like this
Code:
Dim stDocName As String
Dim stLinkCriteria As String
stDocName = "frmAddMeToTheList"
stLinkCriteria = "[CN_ID] =" & Me![CN_ID]
DoCmd.OpenForm stDocName, , , stLinkCriteria
DoCmd.GoToRecord , , acNewRec
Forms!frmAddMeToTheList.CN_ID=Forms!frmFRONTSHEET.CN_ID