You should be able to drag your chosen JPG, or PSD file to the existing Menu Template. In PE, there are "drop-zones."
Personally, I'd do this in CS3 and Encore, using Photoshop, as you have so many more options. In PE, things are a bit more "automatic," with fewer options.
Encore also allows for a Video Asset to be set to Play First. I'm not clear if you wish to do that, or if you want your Main Menu to be Play First.
I don't have Encore so PE and PS CS4 will have to do.
I tried dropping but the first still image is used as background for all of the menu. I want to load one image for startup of menu and then one for the rest.
Maybe I'm dense but I haven't figured out how.
Oops, my bad. I read Premiere CS4, not Photoshop. Your Main Menu will be your Play First.
Now, because the Main Menu and the Scene Selection Menus are linked, you may have to create a new Menu "set" in PS to get totally different background images. This can be done by opening the chosen two Menus (the Main and the Scene Selection) in PS. Make your changes there. Do not eliminate any of the Button Layer Sets (though you can do modifications to the ones that you will use - check the language). Save these .PSD files with the same file naming conventions, but with different names, than your original Templates. To restate that: you want the same naming convention with the proper "MM" and "SS" in the same place as the originals, but you do not want to overwrite the originals. Add one more character, or similar, to the name.
Then, in your DVD Layout, you should now see these two new Menus in your Library. (I'd save to the same folder, but many like to create a new "personal" folder, within the Library structure. Choice is yours.)
I went back to square one and found that it is easy. I setup the menus so they work and then went in to each and there is a browse for still, movie, audio etc. Able to change both the start menu and the actual push button part.
Thanks for the help.
Glad that you got it sorted. Sorry about my mis-reading, regarding Encore.