The remarkable mystic was beatified by Pope John Paul II on April 25, 2004. In his sermon, the Holy Father said:
With the example of Blessed Alexandrina, expressed in the trilogy "suffer, love, make reparation", Christians are able to discover the stimulus and motivation to make "noble" all that is painful and sad in life through the greatest evidence of love: sacrificing one's life for the beloved.There is a short biography at the Vatican website. Pierced Hearts has a longer article with some further details.
Mary's Dowry Productions have published a DVD of the life of Blessed Alexandrina. See that page for more information. I have watched this myself and recommend it as a simple, sincere and beautiful treatment of her life and spirituality.