Is Admin Post Edit Broken in 1.4.13 ?

[ismadman]

Just a heads up , I put up a test board (Fresh install) to test this
And although it works if you check the box and put the name in the post user field ( Like it does on my active site )
it doesn't prefill the details, so without filling them in manually
the post turns into unregistered user ,which just means it has to be edited again
inputting the right info to (username and check box)
* So as this is a fresh install , is there something else I should try to get it to put the name in?
As it states above , the value just isnt getting into the {$username} section
I am running a Linux Box with Centos 5.5 , Apache 2.2 and Php 5.2.13
* Could it be a php issue/conflict ?
Or
*  can this mod be edited (slimmed down) to just utilise the silent editing ?