1) Beside thread administration (where you close the thread), there is an edit function. Click that and beside "Visibilità" I think you choose the second option, which is "Discussione: [Annuncio]".
2) I'm not sure if you can, but I would assume so. I guess I'll let another mod answer this.
3) I'm not entirely sure whether it's against the rules or not, but until someone says it isn't, it's already mentioned at the top of the back that the IWA and WAFL are back. Also for the time being, you could put it in your sig.
Hope this helps...even though 2 of the answers don't really answer your question fully.