Referencing Custom Fields

[ThaBeatMaker]

I am having difficulty populating information into some custom fields in my forms. Here is my code that I have so far to open the form.

Sub OpenTerm()
Set myFolder = Session.GetDefaultFolder(olFolderInbox)
Set myitem = myFolder.Items.Add("IPM.Note.Term - NC")
myitem.Display
End Sub

I have a textbox on the form named TextBox134. How do I tell it to equal a set value and then how do I tell it to equal a variable?