Modules & VBA :: Opening New Form And Taking Data From Another

IThe db has a form called ClientFormNew which logs client details into a table called Clients.Each client has a unique client ID in the table called ClientID. Sometimes Clients call back for further information and we want to log that information into a related table called ClientHistory.Each record in the ClientHistory table has a unique ID called HistoryID which is the same number as the ClientID so these fields are related.

When a client calls back and the telephone adviser opens up the ClientFormNew form and discovers they have called before they need to click on a button called Client History which then opens up the ClientHistoryForm..I am struggling with the code to put on the Client History button as I want the new form to display the details of the clients first contact then allow details of the second contact to be added in a new row. Also the new form needs to show all that client past history which would be in the form of the following fields from the ClientHistory table.HistoryID, ContactDate, Name, ContactMethod, ContactReason, AdviceGiven, Notes.