download the manual here:
http://www.emu.com/support/files/download2.asp?Centric=569&Legacy=1&Platform=1
Then check the hard disk (start with Disk/Browse) and see if the vendor left you some sounds on the hard drive.
plug in some headphones and press the audition button if you find some to load.
hook up your leads and sample some of your own sounds.
Get your favourite soft synth patch (am I right in thinking you were computer based up until now?) and sample it at every 2 tones over a couple of octaves and try keymapping the samples and making a preset. Play it loud whilst appreciating the absense of cpu drain on your computer. Dont forget to save it
Download translator free
http://www.chickensys.com and convert some soft sampler files or soundfonts to eos banks. burn to cd/copy to zip or just plain floppy (choose small files then) and get them into your ultra.
Sample some loops and beat mung and filter the life out of them.
Buy some sampling cds with material that suits your musical style. Remember your emu can read akai so dont limit yourself to the emu library.
that should keep you busy for a while....