Hi, XIPPorterEx is now part of the visual kitchen here:
http://forum.xda-developers.com/showthread.php?t=469420
put xip.bin in \tools\xip_old and \tools\xip_new, then run the erviuskitchen.exe, click ok to the various errors of missing folders, click xipporterex, do port it! output xip will be in \tools\xip_bin_ported
that should set you up