[ApexDC++ 1.5.7 security update]

It's possible that the mirror you're using has updated itself yet. Try selecting a different mirror rather than it automatically doing it for you. Try this UK mirror for example and let me know how it goes.

It worked Lee. Thanks a ton!!   

[ApexDC++ 1.5.7 security update]

I've clicked on the link given by you and downloaded the installer again. But the problem persists.. 

[ApexDC++ 1.5.7 security update]

I've installed the new update twice and whenever I try clicking on the DC icon on my desktop, it still says update to new version. When i updated the version, it even takes me a page that says I've successfully updated the newest version. Even tried restarting my PC, but the problem persists.

 

Please help at the earliest. I'm using Windows 7