Credit must go to the poster of message item "DOM generated form fields
are _NOT_ accessible by name in the form or elements array/objects."
References: "The NAME attribute cannot be set at run time on elements dynamically created with the createElement method." coming from NAME Attribute at MSDN.
Death to bad DOM Implementations by Aaron Gustafson. "I just encountered a DOM implementation issue in IE which took about three hours to solve (and like a year off my life)."
This bug is also discussed and explained at Semicolon's "Setting the 'name' attribute in Internet Explorer" by Bennett McElwee.
This bug happens in MSIE 6, MSIE 7 and MSIE 8 beta 1. On the other hand, Firefox 18.104.22.168, Opera 9.20, Safari 2.0.4, Safari 3.03, Konqueror 3.5.8, Seamonkey 1.x, Seamonkey 2.x, NS 7.2, K-meleon 1.x, Galeon 2.0.4, Epiphany 2.22 all render this testcase without a problem.
Update: This bug has been FIXED in Internet Explorer 8 beta 2 (build 6001.18241) released on August 28th 2008. Otherwise, Internet Explorer 8 beta 2 PASSES this specific and particular testcase.