PicSender just sends G-code that is produced by other programs. In your case Vcarve PRO generates the G-code file and then you send it to the X-carve using PicSender.
Look on this page to get a PP for Vcarve that will work well with PicSender. Scroll down the page to find the Vcarve stuff. Place the Post Processor in the Vcarve directory as per instructions in that thread.