OK I´ve tried this. I've sent the .zip file to a megaupload server and this is the link:
http://www.megaupload.com/?d=GIRJS8IH
The file's name:
Binary_Sigmatel-261x.zip (2.46 MB)
The device is a Inovix IMP-1112 with a 1,8" screen.
The firmware version: 866.610.403
I hope it can be helpful