IE8 on Windows7 Ultimate - Microsoft Windows Vista

I'm operating Windows 7 Ultimate with IE8 64bit.,Microsoft 2010 Key
There appear to become two versions of IE8 on the machine. One in "Program Files"
and another in "Program Files (x86)". The version that seems to become the
default is from the "(x86)" folder. However although the (presumeably) 64bit
version does the job properly,Online dating lets IT professionals earn a bit on the side - 27 Sep 2010 - Computing News,Office Professional Plus 2010, I have noticed that the (x86) version doesn't
seem to close properly and on task manager that although IE seems to have
closed down completely,Office Standard 2010 Sale, Task manager implies that there are still a number
of IE tasks extant (*32 version). Seems to occur when trying to access a
link from one page to another for (perhaps) a file transfer which seems to
fail in some way. I can find no extra information as to what has happened,Microsoft Office 2007 Enterprise Product Key,
and conversely should I make the 64bit version the default in some way?