Prices Inclusive of Tax option is not working as expected. An example on the mysite site (in my multisite), she had a product listed for £22 with tax included option and no shipping. Marketpress charged the person £25.67 and said that £5.13 tax was included. I was expecting it to leave the purchase price as £22 and say that £4.40 was the tax. I'm using an old version of Marketpress because of some modifications were done by my developer related to multisite purchasing from more than one site at a once.