New 2008.2 firmware ES8000 dont upgrade

[Updategotmewrong]

Hello to everyone!

I bouth a Spectacular ue40es8000 a week ago.and as my nick means i did up date from 2003 to 2008.And i got wrong ....Because video looks Very poor quality now, specially USB movies.Ive just tried to downgrade 2003 back whitout succes. I ve put the dns but after turn ir off and on and try to update in line,An error appears : connection error....Is there any way to do ti v?a USB , and any place to download the firmware 2003 to put in USB .Thanks a Lot