This forum is for Plugin developers. For more advice, you should repost to the appropriate notation forum (Mac or Windows). Please include more details in your post, such as what version of the software you're using (Finale 2005, PrintMusic 2001, NotePad, etc.) and precisely what time signature you're trying to recreate.

To use irregular time signatures, click on the Time Signature Tool. Double-click on the measure. Click the right arrow button for the number of beats until the desired time signature appears.