She may also be entitled to non-statutory redundancy payments depending on the arrangements her company is making in this regard. If there is non-statutory redundancy payments then the Revenue booklet on taxation of same might be of interest:
[broken link removed]
In relation to SW entitlements she should check out these links:
She may be entitled to more than just Unemployment Benefit or Assistance so make sure to investigate all SW payment entitlements (the SW should be able to advise) and claim them.
If she's a member of a union then they should presumably be negotiating collectively on behalf of her and her colleagues and advising appropriately.