Howdy!  I lead the Web Systems team at NI; we're the ones making the file available electronically.  Saw this discussion and wanted to chime in with some helpful notes... 
1.  The MD5 checksum of the labview_80.exe file is indeed 42950520eb90d3908c74e97461480988; we've added a labview_80.exe.md5 file with this sum in it to the site for your convenience. 
2.  The file is definitely still available via FTP, you can use ftp://labview8.ni.com/evaluation/labview/pc/labview_80.exe - we have it available via HTTP as well for people that have problems FTPing at http://labview8.ni.com/evaluation/labview/pc/labview_80.exe.  We do recommend using FTP.  When you fill out the page at http://digital.ni.com/demo.nsf/websearch/1...&node=157200_US (and please do take a sec to do this, we'd love to hear more about you before you download) it will try to open the download via FTP automatically but provides a http:// link as a backup. 
3.  Anyone having trouble downloading LV8, please do report it to us at webmaster@ni.com or by going to https://sine.ni.com/apps/utf8/nicc.call_me?p_form_id=5.  Suggestions on how to improve your software downloading experience are also welcome! 
Thanks, 
Ernest Mueller 
National Instruments