Downloading issues Everytime I download or try to download my messenger on my computer the download completes but it won't install... the download box disappears and I have no idea where the download went... how do I fix this... also when I try to open an attachment from my email it doesn't open the file like it should

There are 2 ways First is directly from your iPhone, second is through iTunes on your computer. Both options require that you have an Apple ID. If you have no Apple ID yet, here's a guide on how to create one:
CREATE YOUR APPLE ID


Once you have an Apple ID, you can now download free apps from the App Store including Yahoo Messenger.
Install directly from your iPhone:

1. Open the App Store app on your iPhone and go to Search tab (fourth on the bottom icons)
2. Type Yahoo messenger and tap on search
3. Choose the top result or the one having this
4. Tap FREE and tap Install
5. Provide your Apple ID password and click OK

That's it! Just wait until it completes the download and installation and you'll be ready to chat away!
Installation though iTunes:

1. Open iTunes and log in to iTunes Store
2. On the search box at the top-right corner of iTunes window, type in: yahoo messenger
3. From the search results, click the same icon as above and click on FREE. That will prompt iTunes to download the said app.
4. Connect your iPhone to your computer and sync.

NOTE: Before you sync, make sure that you backup first so you won't lose any important data.

For more iPhone tips, CLICK HERE.

Hi there!
What you should in order to download yahoo messenger, is to open this link:
http://messenger.yahoo.com/download/
Press on the Download Now button, and then press on Save in the box/window that will be opened. After the download is completed, you can install the messenger.
Have fun! :)

Hi,
First of all clean your temp files,clean your registry-->use this tool .
Uninstall/Reinstall the webcam's driver-->download and install --->HERE!
When the file is done downloading, just click on the file and you can begin installing your new software.
Uninstall/Reinstall MSN -->download and install-->HERE!

You can download yahoo messenger here:
http://messenger.yahoo.com/download/

CLICK HERE to download the Yahoo messenger, and then follow the on screen prompts. I hope this helps you.

I think you are loosing the connectivity each time... try download the offline installer with Internet download manager. I think it will help you to fix the issue.

Thanks for joining fixya.

Have a nice day.

Yahoo may just be having server issues if the rest of your internet seems to be running fine.

Try re-downloading later on once they may have solved the issue. Remember there are plenty of other messenger programs compatible with the Yahoo messenger system.

Yeah it been a problem for so many others like you, check out this official solution at YMessBlog
But I recommend to you install a standalone version ;
A standalone version is a full complete installation of Yahoo Messenger ,which doesnt connect to internet for further installation of the software.
So download the latest Yahoo Messenger from here at softpedia

• Yahoo Messenger 9.0.0.2124 (14.1 MB)

Hope that helps !!

The camera may not be compatible with Yahoo, Try a different service to use the cam on? if that to crashes then its something with the drivers.