As bad as it sounds his UC is right now, I'd say it is highly unlikely that probiotics alone will get him out of this flare. I do suggest, however, the he go ahead and use them while he's on the Remicade.
I'm glad that it sounds like you're doing well, however! Keep us posted on yourself as well as your father!
Status: Remission since late May 2009!
Symptoms began in November 2008, ~4 weeks after giving birth to my son.
Eased for ~3 weeks in December, possibly b/c of probiotic use?
Returned in January 2009 (with a vengeance), diagnosed with pancolitis on January 30.
Currently taking Asacol (400mg 4 pills 3x daily), Rowasa twice weekly, Culturelle probiotic, and Zoloft (25 mg).