I was able to build my own start up animation!!!  (with the help of a friend in Germany...lol)

So here is how i did it:
Useing BrewFM (Brew File Manager) I saw a folder in brew/mod called resources. In this folder is Brew files for how the phone runs...images, icons, etc.

This file folder and its contents is not viewable via QPST. So i placed a small text file in the resources folder with BrewFM, it then becomes viewable in QPST... but the contents are still hidden.

With BrewFM i copied some of the files from the resources folder to my MMC, then to the computer via QPST.

The file in question here is called metro.bar (.bar is a brew resource file) It contains the start up, shutdown animation... and some other things too.

I then use BREW Compressed Image tool and made a new .bci file (kinda like a animated GIF)

Then useing Hex Workshop to view the binary of the new BCI file, and copied it.

Then useing Brew resource editor. opened the metro.bar, and pasted the new binary (copied from the BCI file) into the place for the startup animation.

Below is the youtube vid i made 

http://www.youtube.com/watch?v=rqUJz5mTTtI

And yes, the animation SUX... i know, but it only took like 5 mins to make.

LET THE GAMES BEGIN!!!

can you upload the files or tell use were to get them?

thanx

i will upload the metro.bar file.... but without brewfm, you can not see the resource folder.

now you could make a folder, brew/mod/resources    ...BUT if you overwrite the orignal folder with a blank one....you FUCKED!!!

i am working on a way for everyone to use brewfm..... or a file manager for the pc that can see the hidden files.

**posted from my fin**

Read this.... its how to use BrewFM:
http://www.samsung-finesse.com/index.php?topic=705.0

You will need a TestSig... that is discussed in that topic too...

HOW TO UPDATE:

Software needed:
-Brew SDK Tools: https://brewx.qualcomm.com/bws/content/gi/products/sdktools/1.1/1.1.1.09/install/license.htm  <~~ should be free, and not needed to be a developer.
-Image software: Photoshop etc.
-Gif image: You dont really need a gif, but it make it easier.
-metro.bar: <<~~~ the resource file with the animations in it. http://rapidshare.com/files/252685926/metro.bar.html


1: Open BrewSDK Tools >> brew compressed image authering tool. This is the tools that will build the animation with. Take a GIF and extract the frames to .JPEG (it MUST be .JPEG not .JPG) or you can make your own animation by hand with photo shop. The image canvas size is 240X400. In the tool, click edit>>insert image. You will need to load all images this way, one at a time. Start with the last one and add your way to the first one. 20-25 frames should do. Save the file... "whatever".bci. You can now test the animation in the tool to see how it will look.

2. Open BrewSDK Tools >> Brew Resource Editor. This tool will load the BCI into the metro.bar. Select open file and change "file type" at the bottom of the window to *.*... then find the metro.bar file.
Look at images below to see what to do next. When you have made the changes... hit "Build" to make a NEW .BAR file.... save your project as a .BRX file... metro.brx

3. Load the NEW merto.bar file to the brew/mod/resources folder... and reboot phone.

not sure yet.... but you can just turn it off, i did 

Go to Menu/Settings/Sound Settings/Alerts and on "power on" select off

Well is not possible for us  but is possible is you can hack the phone like xboxhaker or if you're able to see the folder resources in systemfiles like xboxhaker mention earlier. So as for now no