Shoutbox

Okay, I used to do programming, and I'm not really  that great with figuring out computer problems, I only know the basics.

When I heard about MSGPlus, I felt compelled to get it, and asked my friend who runs the program, to forward me the link today. I downloaded it (Version 3.63.148 for Msn Messenger 7.5 on my windows XP computer) and tried to download it. Now, there are five accounts on this machine, only two are used frequently, and I don't care for the Windows Live Messenger, so I haven't installed it. All the accounts are administrator access and there are no viruses active on the computer that I have come to be aware of.

First time I tried to install, I received this message:
(I surrounded it in red...)


Now, I have looked through the old threads (even as far back as page 84...) and searched for similar topics to find nothing describing this problem exactly, and received no solution for this issue.

Is it really corrupt and due to my using firefox? should I be downloading it from a mirror site instead? Should I be using the 'run' program instead of double-clicking the .exe download on my desktop?

I hope to get help with this, and I apologise if there was indeed an issue exactly like this that was already resolved and on the forum...