I'm wondering is it possible to have 1 album... because at the moment every user seems to have his own album. I don't want this as all the photos are of the same event... so it would be nice to get a slide show of all the photos, and I don't think u can do a slide show across multiple albums?!?
Create your single album, allow uploads to it in album properties and disallow personal galleries on the groups page.
Nibbler you are a legend!