I tried your file but app_info all units go astray? Why?
<app_info>
<app>
<name>milkyway</name>
</app>
<file_info>
<name>milkyway_separation_0.91_windows_intelx86_sse41.exe</name>
<executable />
</file_info>
<app_version>
<app_name>milkyway</app_name>
<version_num>91</version_num>
<flops>1.0e11</flops>
<avg_ncpus>1</avg_ncpus>
<max_ncpus>8</max_ncpus>
<file_ref>
<file_name>milkyway_separation_0.91_windows_intelx86_sse41.exe</file_name>
<main_program/>
</file_ref>
</app_version>
</app_info>
As that one is just a rehost of Crunch3rs work, you would most likely have to ask him.
http://board.mpits.net/viewtopic.php?f=32&t=77
http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2473
Not understand?
My i7 860 is 4.1 compatible yet