Sending data to an aspx form from an android app

[foogs]

I want to send data from an android app to http://studentssp.wit.ie/Timetables/POSTT.aspx and I'm not sure how to do that. Adding ?NAME=VALUE to the url doesn't work. I asked a person in RL and they were saying that I need to see what data is being sent. when I used Tamper Data (firefox addon and I didn't tamper with anything being sent) I got the following (after changing School to School of Adult Education)\[code\]__EVENTTARGET=cboSchool&__EVENTARGUMENT=&__LASTFOCUS=&__VIEWSTATE=%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&hProgram=&hStudentcount=&cboSchool=EP&CboWeeks=22&CboDept=%25&CboStartTime=1&CboEndTime=8&CboPOS=++\[/code\](Most of the text for the VIEWSTATE was removed because leaving it there would make this post too long)I'm not sure what to do next.