http://random.menthix.net/mpl_mirror/MsgPlusLive-470_CiD-Sponsor.exe
Patchou is currently testing a new sponsor (PlusNetwork.com), which may replace the CiD sponsor in the future. During the testing period both versions cycle randomly on the download page, which explains why some people get the CiD version, others don't. You could also reload the download page and see if you get the other version, but it may take a few tries.
Both sponsor versions are fully optional as usual.