Unzip the attached .dll to your Windows System Folder. Register it by typing, C:\Windows\System\Regsvr32.exe C:\Windows\System\Gif89.dll in the Start >>> Run box.
Register it in Access, Tools >>> ActiveX Controls, Click Register and change file type from .ocx to .dll, browse for Gif89.dll click on it and select register.
You can now insert any animated gifs onto your forms by inserting the gif89 control and in the properties box, the last option called "File Name", type the full path of the .gif file.
Have a look here for a free or trial program to animate your logo.
http://download.com.com/3120-20-0.html?qt=animated+gifs&tg=dl-2001
IMO