Hmm.... I think the version.txt is empty. Try to re-upload it. If you've done all that, then try this:
[php]Dim Temp as string=My.Computer.Filesystem.GetTempFilename() & rnd() *10000
My.Computer.Network.DownloadFile("http://www.mywebsiteblahblah.com/Version.txt",Temp)
Dim read as string = My.Computer.FileSystem.ReadAllText(Temp)
If not read = vbnullString Then
Msgbox ("Check version here...")
End If
My.Computer.FileSystem.DeleteFile(Temp,FileIO.UIOp tion.OnlyErrorDialogs, FileIO.RecycleOption.DeletePermanently, FileIO.UICancelOption.ThrowException)
[/php]
This code should work for you if the version.txt file is not empty...Working fine for me.
Hope this helps !!