922 AIO W/Vista & XPSP2

I've spent a couple of weeks reading all I could both here and Microsoft's Vista Forum in hopes of resolving the printer issue. I thought it would all work out fine once the new drivers came out, but no such luck! I tried ALL the tips given here and finally broke down and called Dell for support. After spending about 20 minutes with one guy, he told me he reached the end of his knowledge base concerning this issue and connected me to the printer division of tech support. I let her go into my laptop and work her magic (I hoped!), but again, no luck. In fact, she told me the 922 AIO wasn't made for "wireless" and I'd have to upgrade and buy a new printer! (This after I'd explained MANY times to her that I was using a desktop running XPSP2 that was hooked into a router and my new laptop w/Vista Home Premium was wirelessly connected via the router.) The printer is hooked up to my desktop. So, my question is: Has anyone been successful in sharing the 922 AIO using XP and Vista? I saw one message that said they were able to print & scan but not fax. Has anybody gotten it all to work? I was pretty amazed when the tech support person told me it wasn't possible, I have to admit. I've been buying Dell computers (as has my son & my ex) for years and have noticed the level of support has definitely gone downhill. In fact, she seemed more interested in telling me my warranty for my printer was expired (what does that have to do with sharing it?). I figured I just spent almost $1,500 for a new laptop and it wasn't out of line for me to expect to be able to use my old printer with it and that I was entitled to phone support to solve the issue! Sorry, this has turned into a bit of a rant, but I'm really frustrated over this whole thing and have been pulling my hair out and gnashing my teeth trying to get it up and running. Betty