It's been a while since you posted and nobody's replied yet...maybe you should check out MarkedbyTeachers.com, TSR's sister site. It has the largest library of essays in the UK.
They've got over 181,000+ coursework, essays, homeworks etc.. all written by GCSE, A Level, University and IB students across all topics. You get access either by publishing some of your own work, or paying £4.99 for a month's access. Both ways give you unlimited access to all of the essays.
All their documents are submitted to Turnitin anti-plagiarism software, so it can't be misused, and the site's used by hundreds of thousands of UK teachers and students.
While I know very little asp(x), then if I was doing it in PHP, I would either use a form to submit from default to basket.aspx (HTML and PHP on the basket page), or if this wasn't an option or you can't do that is aspx, then the easiest way would be to get the values entered in ListBox1, and put it as a GET data in the URL (so your redirect reads Response.Redirect("basket.aspx?v alue1=x&value2=y&...&valuen=z")