Divorce contesed by husband even 498A has been filled

Hi My friend filed divorce against her husband after filling 498A.divorce was filed on cruelty ground and asking for dawry . Husband contested.now the evidence date is coming.my questions are: 1.divorce was filed in 2015 but till 2014 in my friend's Facebook her husband photo has been posted....is it create any problem???? 2. My friends has many voice recording of her husband where her husband using slang aginst her,gave her threat to kill,and even voice record where her father in law ask her to give divorce his son......are these recording can be used for evidence in fever of my friend? ???? 3.after filling divorce my friend was forced to go for 2days outing with her so called husband and the forced made by her husband.though he's husband did not received the divorce notice send by the court.........is it create any problem against my friend??????? Plzzzz advice urgently