I'm sorry, but the Samsung camera is currently out of stock from the Skype shop.
The Freetalk camera you mention (actual model number is HD TALK-7180) is the old model from 2010 and is generally no longer available.
However, the Samsung camera STC1100 works with all Skype-enabled Samsung TVs from 2010 and 2011. See Samsung's website for details:
You can also enter your Samsung TV model number on their site to check if the camera is compatible.
A number of online shops are selling this camera:
I hope this helps.