Do I need special software to print on the 4th and Vine labels?

No, you can use a word processor or graphics software. If you are using either of these, consider the following as a guideline:

1. Set the margins to fit the label sheet.
2. Create columns to give you 2 equal sections to your page.
3. Add your text where you think you it should go.
4. Print your document out on a sheet of plain paper, then hold it up to the label sheet and see how close you are. Make adjustments until you are satisfied with the results.
5. Print one label sheet as a test. If everything is satisfactory print your labels.