I do not understand the question.
How is this related to SQLyog (or MONyog)? i/we don't know the specific application 'Interspire shopping cart' you refer to. There are tens of thousands of MySQL- based applications and we cannot know them all and do not intend to do either. However SQLyog connects diredtly to the database and what other clients or applications also do do at the same time does not matter for SQLyog.