CCleaner Free Download

Since V5.41.6446 I have not been able to find the updated downloads on my Acer XP computer. The download appears to be successful but I cannot find it to install it. In the past, I was able to select where I wanted to download to go, usually on the Desktop, but that option is not available any longer. I have Explored every Download file on the computer and cannot find it/them. Also, I tried to update CCleaner on my Vista computer. "A connection with the server could not be established" (0x2efd). My computers are on line through Comcast on a secured network. TIA for any help that can be provided. LJH.