I wouldn't start from here.....
I have had the responsibility of a twice yearly village magazine for twenty years, and a capable friend is taking over the advertising part of the work. There are about £800 of ads in each edition collected as as pdf, good quality jpg, Word, and over the years many I cobbled from CorelDRW all later converted to pdf for printing.
In the nature of things the new "boy" and I will have to cooperate closely to avoid duplicated efforts and move over to whatever he wants to use.
I think the stumbling block is the suspect installation so I'd value advice on clearing his shiny new computer of all traces of Corel then installing a fresh one?