re: IUI
IUI is Intra uterine Insemination. Vastly different and much less involved than IVF. The gal would bring a fresh sperm sample from her husband to the doc's office and they send it directly into the uterus thru a long thin tube inserted thru the cervix.
Chances of conception are good - probably about the same as regular conception on any given cycle - as long as there are no other issues.
Good luck to your friend!