Woah... that's old and quite hard to find a Minolta to Canon adaptor... if one even exists.... I think the more popular conversion might be Canon to Minolta... altho' hardly anyone actually uses these kinds of convertors anymore... sorry can't help you there...
yes i've seen canon to minolta converters, but not the other way around. in any case, you'll lose AF capability so why bother? tme's right, go buy a 50mm lens for canon.