If you anwered "no" in the previous question, what means of making the lecturers more interested in students' researches you could offer?
no
perhaps taking action to improve the quality of presentations and research in general would be beneficial.
perhaps it would make sense to email the lecturers the program?
poster presentations should be divided into groups based on relevant fields. i believe this way it would be easier for interested readers to find posters that interest them.