I've heard that the one by Fat Burger (A+, I think) is good for business math. If it's 141 he should try that, for 142 (business calc), any engineering student should be able to help him for a couple bucks or drinks. I had great success tutoring a couple 142 students without having taken the class. There is nothing particularly challenging in 141, but it frequently does take more brushing up from potential tutors since it's such a hodgepodge of limited/specific problems.
Also, I can't remember if Amy Austin (math lecturer at A&M) does 141/142 reviews. If she does, YP13 should take advantage because Amy Austin is pure awesome.