cannot find bootable image

[usb-user]

Dear Sirs, Miss,
I Found This tool Usefull but now i get the Same Error.
I have Tried the Enterprise Edition with no ServicePack Inside

The system canot Update the USB Stick Operating system.

I Made A slipstream for SP1 and then burn a Image to test the DVD
All goes Install no Problem
But This Tool Shown the Message Error

   

Thank you For Help
Ps I Use 1,5 Beta
I Use 1,4 Version

I have the same error message with win 8.1 pro. I already tried wintousb 1.5beta, but nothing changed.

Can anybody confirm that it works with the latest beta?

Please send the "user.log" to me