First thing you'll notice is that Message, Chat, Call and Add icons have a face lift.. still do the same things as before it's really just a little cosmetic surgery.. what does need more surgery though is old themes/skins as they toolbars no longer work due to the reconstruction.. see [Yahoo Messenger Skins Help]
for more information.

The New Look....





Next is the new look for your Std IM window...you'll notice that your Send File and Webcam icons have moved up near the control menu and have had a face lift and there are 2 new icons which are Ignore and [IMVironment™]. If you've already forgotten what the "old" versions looked like check out [Yahoo Messenger: The Old Days] as we have screenshots dating back to when there were NO smileys.. you read it right! Yahoo has come a long way since then.

Typing Indicator...
woohoo what a welcome relief this is! Thank you Yahoo!

you don't need the latest version to notice this feature either ;-)

Tap yourself insane...
with the typing sound!
In and active IM window hit Format on the control menu
then select typing sound
prepare for insanity to arrive in about 10mins!

Sound Files...
in versions 5001015 and 1018 we were soundless ;-) with 5001029 they have given them back.. this time we get a cute little icon and the text command used to generate the sounds is now gone :-)
the command is the same <snd=filename>

<snd=backsp>
<snd=type>
<snd=return>
<snd=yahoo>
<snd=theyodel>
<snd=yahoomail>
<snd=sent>
<snd=pow>
<snd=plybktsp>
<snd=msgback>
<snd=newdoorbell>
<snd=chimedwn>
<snd=knock>
<snd=phone>
<snd=click>
<snd=cowbell>
<snd=chimeup>
<snd=door>
<snd=doorbell>

and before you ask.. yes I was talking to myself.. the downside of being ahead in the timezone stakes is that no one is ever online when you need them.. thats right guys you were all asleep! ;-)
Remember when making your own sound files that you must send these to you friends as well if you want them to hear the sounds. Email or use Send File in Messenger itself to get the files to them the tell them then just get them to drop them in their Media Folder... usual path is..
c:\program files\Yahoo!\messenger\media

Yahoo! Messenger Insider Splash Screen
to turn off the Yahoo! Messenger Insider splash screen simply...
hit Login
select Preferences
select the General Category
and Uncheck the box beside Show Yahoo! Insider..

hit Apply
hit OK

Moving Stuff Around...
[File Transfer]
    [Sending]
    [Accepting/Receiving a file]

we're assuming that the basics of it is still the same just give us a day or two to check it out and update the screenshots :-)

File Transfer...
NOTE: Max file size is 1.5 MB
So you've got the best pic of your life and you want to share it with your friends.. well here's what you do...

Sending...
send a file from your friends list
on your friends list find the name of the person you want to send the file to
right click on it
select send a file
the Send a File window will open..
under File to Send hit the browse button
navigate your way to the file you want
click on the file to select
hit Open
in Enter a brief description put down a few words of wisdom
hit Send

or from the active IM window...
hit the paper clip
the Send a File window will open..
under File to Send hit the browse button
navigate your way to the file you want
click on the file to select
hit Open
in Enter a brief description put down a few words of wisdom
hit Send

either way, up pops this...

and all you have to do is wait for the friend to accept the file....

Accepting/Receiving a file...
the first thing you'll notices is a File Receive...window pop up

hit Download
this should open by default your user ID folder which is stored in the dMy Documents folder
if this is where you want to store the file hit Save
all going to plan this is the message you will see after the download is complete