Pointing develops in stages. IN terms of autism protodeclarative pointng (pointing out things of interest) should have developed by 18 months.
The CHAT test is a god place to start. Seehere
My son is further along the spectrum than coppertop's. At 5 he has very little language. He can point (started after 2) but often gets it wrong (wrong direction, wrong finger etc).
He is however very very affectionate. Picked him up from school today and got the biggest hug- his meal time assistant is always commenting on how many cuddles he gives her at lunch time.
At 20 months he looked perfectly normal apart from the fact that he didn't point and he was diificult to engage in play. In fact assessments carried out after he was 2 said that he "definitely wasn't autistic". The eraly signs are subtle, but I think your friend needs to start to get into the system. It will be frustrating as its difficult to get anyone to take you seriously. I used to just say lamely "but he doesn't point" and people would look at me like I was mad. He's vile in supermarkets now, but at the time he was very very passive-0 the most laid back baby in the antenatal group as everyone said- so he didn't fit the screaming tantrums etc (makes up for it now ) which again makes it harder to get taken seriously.
Referral to SALT is a good place to start- hipefully she'll see a good SALT_ that's how we got into the system. It's even better that she's been referred to a developmental paed. The hard bit is getting the referrals- it's almost time to sit back and try and relax about it (impossible I know).
Does she have internet access? I would say it is essential if you have an autistic child. (or a child with any SN really). It can be avery isolating time. I joined autism lists before my son was diagnosed- theyu were very welcoming andit meant that when he was diagnosed I had a support group ready.
There are lots of very good books out there. Any visit to the library will yield some. I had a little collection.
How's her dp/dh? Often they find acceptance very difficult which can make things difficult for everyone for a while.