Capture and Save Website Dynamic Graphic

I need a VB.net (Visual Studio 2008) application that reads a list of AISN numbers from the plain text file: “[login to view URL]”, accesses a specific website, and saves the resulting graphic in C:\AISN as the AISN number plus extension. Example: AISN number: B001GZ6QEC Site: [login to view URL] Saves as: C:\AISN\[login to view URL] (or [login to view URL]) The website is the same every time with the exception of the AISN number. The full project [login to view URL] may have over 30,000 entries, so the program you write must check to be sure the file is completely written. I also want the app to be multi-threaded so that it can retrieve and store more than one graphic at a time to speed things up. Attached to this project is [login to view URL] with 300 AISN numbers. I am aware that some of them do not produce graphs. Their results should be saved any way. My budget is small and the program very simple. Payment in full will be made with five-star feedback as soon as I receive and have successfully tested the program. Thank you for your bids!!