Many to Many _ Access2003

I am using Access2003.
I am relatively new to Access.

I wish to achieve the same result as discussed in the article on this site – https://www.techrepublic.com.com/5100-6329-5034790-2.html#Listing%20A

however there seems to be errors in the listing and I can’t get things to work anybody shed any help appreciated (errMsgGoto for instance I worked out the space ).

I also wonder if the code is diferent in Access2003?

regards
Stephen