I hope you really aren't trying to do what your post says you are.  You can't edit Evo forms in DBA or vice versa.  You have to use the Evo RTM Editor to edit Evo forms and the DBA Modify Forms to edit DBA Classic RTMs.  Once you have the RTM open in the correct editor and have clicked on the text object you want to edit, up on the top toolbar area will be a box containing the actual text that you can edit.