When trying to convert from previous version of 4D, some methods may not be tokenized in the structure. In 4D 2004, you are able to retokenize these methods by simply holding down the ctrl key (Windows) or the command key (Mac OS) and by dragging the structure over the 4D application. Doing so will display a dialog that lets you select a checkbox stating "retokenize the database". After this procedure is done, all your methods should be retokenized.