DOWNLOAD FILE FROM WEB(URGENT)

hello freelancers, i need just source code in vb.net to download file from javascript webpages. need you to give source code for downloading present file and previous dated files from websites. the website requires to input date and execute download button to achieve this. you need to give me the source code /simple form with source code. 1) this should be done for 3 sites with diff url. thru webclient method not webbrowser method .in those site we need to input date and execute button to get download link. (GOT SAMPLE CODE TOO WITH SLIGHTEST CHANGES YOU CAN FINISH THE WORK,if you are good in vb and html and java ) 2) regx method to sort csv data and 3)source code to read /sort a csv file from reverse i mean last line as firstline and last but one as second line....... lastline as need it urgent. max 1week time. full payment on recieving entire source code or partly payment with each sites. regards abishek