I'd like to know the difference between the below sentences.
1. It's important that she should talk to me when she gets here.
2. It's important that she talks to me ~.
3. It's important that she talks to me ~.
Should is used to express advices
I think it sounds wrongly if you say "she should talk to me"
A top of that, If you say "It's important" you are not expressing advice. Yu say her that she must.
So i would say
It's important (that) She talks to me when (She) gets here.