Sorry to hear things aren't getting any better yet (HUGS)
so she's getting minimal contact with you when going to sleep, you're in sight but that's all?
what was happening during that 1.5hr nw? could she be teething for it to be such a long one?
i'm afraid things probably aren't going to be very quick to fix (i speak from experience
) since by this age they are more aware that the 'rules' are changing and they don't like it! things are likely to get worse at first as she's unsettled and probably building some OT too...
there are a few things which you could try, or at least think about, i'll throw them out there as ideas for now. please write back if you want help progressing any of them.
role play: use doll/teddies during the daytime to explain how she needs to go to sleep in her bed while you are busy doing jobs/sleeping etc. at this age they are far more understanding.
sticker chart: if she responds well to this kind of thing then worth a try, lots of praise and/or treat reward
mummy unavailable: tell her you need to nip to the loo/shower or whatever and go out for a few seconds but then go back in. if she is ok with this then stretch out the time you're away for. if she's really unhappy then tread carefully - go out quickly and flush the loo but go straight back so as not to lose trust
step up GW: sit where you are but turn away so she can't see your face, move your 'spot' to half in/out the doorway, leave the chair....only you're not in it! etc
With my DS i needed to leave the room or he would wake all night long looking for me. Yes it took a while for him to accept (and lots of tears) but once he did the nw's improved significantly.
I'm not sure how near you are to this stage but i thought this thread was really useful
http://babywhispererforums.com/index.php?topic=146554.0Honestly, its not quick or easy but SOOOOOO worth it when LO goes to sleep happily in their own bed and sttn
Keep strong!