Scheme interpreter

[jkresh]

I am taking a class in scheme this semester and we are using MIT scheme 7.61 as our standard interpreter, even with emacs I find it to be terrible and its error messages to be absolutly useless, as such I would like to use a more freindly interpreter, unfortunatly non seem to be compatable with the newest MIT scheme, functions such as write-line and prompt-for-inputchar will not run in even the newest version of Dr. Scheme, which seems to be the most updated one outside of MIT's version, any ideas on what to do would be helpful.