Firstly, welcome to the forum.
Secondly, thank you for your questions. You have done the right thing by coming here to clarify your misonceptions about Islam.
what I have heard about Islam is that women don't have souls
This is utter tosh. Both men and women have souls. Without souls we wouldn't be alive. At death, souls get taken from our bodies leaving empty shells which are just the bodies. All human beings have souls. Women are human too ya know!
they go to the Christian equivalent of Hell
Allah can send wrong doers who don't repent, disbelivers in Allah etc to Hell if He so chooses, be they men or women. Each person, man or woman will be responsible for his or her deeds. If a man and a woman, both separately committ the same bad deed, they will get the same sin for it - the woman will not get more. Similarly a woman and a man who have committed atrocities are equally likely to go to hell. The woman is NOT more likely to go to hell.
This is Islam's stance on men and woman, according to their deeds:
"Lo! men who surrender unto Allah, and women who surrender, and men who believe and women who believe, and men who obey and women who obey, and men who speak the truth and women who speak the truth, and men who persevere (in righteousness) and women who persevere, and men who are humble and women who are humble, and men who give alms and women who give alms, and men who fast and women who fast, and men who guard their modesty and women who guard (their modesty), and men who remember Allah much and women who remember - Allah has prepared for them forgiveness and a vast reward. " (The Holy Qur'an, 33:35)
Isn't that beautiful?
I think you get the idea now.
By the way, what you quoted above, if that was what was told to you, is not an extremist point of view - It is not an Islamic point of view full stop!
Hope that helps a bit, and please do let us know if you have any other questions.
Peace.