do you not know how to search ?
http://askboschbestbuy.com/wp-content/uploads/sites/2/2013/05/Power-Cord-Installation.pdf
took me less than a moment to locate this, what reason other than create yet another post about your moms new dishwasher is there for not looking for it yourself?
read your manual. then read it again.
Rinse aid goes in the last rinse. From what I see, your dispenser is empty, fill it where the lines are beside the "MAX", not the little hole.
Rinse aid
"it was excessively wet in there despite using a rinse aid, so after applying it in the dispenser the supposedly right way, the dampness is under control"
How were you using the rinse aid in the first load? and what is the "supposed" right way?