Yes they do work like any other controller. If you pick up an adapter for a Playstation controller the drivers are already included with Windows XP, if you don't have Windows XP or you choose an adapter for an Xbox controller you will either get drivers with the adapter or you can download them online.
Tax is not charged from places like Play-Asia
Play-Asia is a reputable company, they have limited references but you can find them at ResellerRatings.com
I do want to offer an alternative however as I sell both.
You can find the adapter for the Xbox controller
here for 8.99 shipped via First Class mail or for 2.00 more we can ship Priority, First Class takes three to five days and Priority takes two to three.
You can also find the cheaper Playstation controller adapter
here for 11.00. We also offer the more expensive Smartjoy Plus for 13.00 which you can find
here.
The less expensive one is just as good in my experiences as the more expensive one, but the more expensive one is a name brand and better known and our supplier charges us more for those which is why we offer an alternative for the more cost concious.
The biggest advantage we have to places like Play-Asia who are based in Hong Kong I believe is that our shipping is much faster.
For example their least expensive shipping (3.00) takes seven to fourteen days while our least expensive First Class shipping takes three to five days. Our Priority shipping is 3.85 and takes two to three days, to get the same service from Play-Asia you would have to pay 15.00 or more.
We do offer drivers for the Xbox controller on our website
here and drivers for the Playstation controller are included via floppy in the box or as I mentioned come with Windows XP.
You can find us at ResellerRatings.com also and we are of course a PayPal Verified Premier Business Member with over 600 verified buyers, also because PayPal believes we are such a reputable seller they offer the money back guarantee which you can purchase for less than two dollars.
I hope this helps you out, good luck!