I have v3.0.2 of the iRealBook which came with 900 "Library" songs. As far as I know, these songs are not available anymore. I'm not familiar with the new version and I don't know if it comes with a Library of it's own. I'm assuming that a software update will wipe this Library. I'd like to update my copy of iRealBook to the current version without losing these 900 songs. How do I do it? Thanks.