I, too, get 2-3 warnings on every ET page for the last couple of days (possibly since my last McAfee update on Saturday). Today, the files involved look like:
C:\Documents and Settings\Alan\Local Settings\Temporary Internet Files\Content.IE5\CPERS9AJ\forumdisplay[1].php\00000e6d.js
Yesterday, it was referring to ...count[1].js\count.js
Again, it's complaining that this is "Exploit-MhtRedir.gen".
{Edit:
Posting this message, it complained about ...newreply[2].php\000010a0.js . There must be some common code that ET is using that looks (or is?) dangerous}.