There are plenty of sellers on here that sell refurbished PC's
And the seller in the second link that was posted is one of them.. I wouldn't hesitate in giving them my money; I have dealt with them before and they have excellent customer service

Also, did you read this part:
Please Note: This computer package will come with FreeDOS (Operating System).You need to buy the Windows DVD separately from PC MEAL to get Windows 7 installed by PC MEAL.  The Windows 7 icon of the the title image only means it's compatible with Windows 7.