Now orkut with new stuff, you can now upload 1000 pictures on orkut and also if you are Internet Explorer User then they have provided a bulk upload feature. Note that Internet Explorer . It works only on internet explorer for now and may be in future they will come up similar things for Firfox too.
So here is guide :

How to upload many / multiple pictures at once in Orkut

Log into your google orkut account using internet explorer.
Now goto :
Photos –> New Album (give name of new album and its description) –> Click Create
If this is your first time then you will be asked for installing activeX,
Google ActiveX for bulk upload
Click OK to Install it..

Now, click “Multiple Photo Upload” in order to go to bulk upload mode.
Now Click “ADD”


Add whatever photos you want to upload one by one and when you are done you have to press upload photos and you photo shall get uploaded in few minutes depending upon the speed your connection.
upload-pictures-bulk-finally-orkut.jpg

You are done .

Also, you can shift to old method anytime while you create new album. And remember, you won’t see this feature if you are on Mozilla Firefox or Opera or any other browser than Mircrosoft Internet Explorer.