HELP! I've upgared radio stac (programme b) and MDA stopped

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First I've upgraded programme A... usigng TOM Kitchen on http://www.yorch.net/ (4.00.05 ENG ppc2003) ... Everything worked fine.. till .. I decided to upgrade programme B..radio stack.. RU 6.24.00 .. I've copied everything to windows directory and started upgrading.. but on 16%... status bar stopped.. I've benn waint for half an hour until it move.. but nothing has happeden .. so I used hard restart.. and now Everything what I can see is Boot Screen.. system stops on it, and don't move farther.. On the screen only numeber of the programme A is displayed (4.00.05 ENG) .. without number of radio stack..

what I can do now?
Is there any help for me?
What I have to do to activate my MDA... please help

I live in Poland and use Era Net.

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I've read some about problemms simmilar to mine, and now I know that I need radio stack, designed for polish users (ERA) .. from thi what i remember its number was sth about 3.19 .. does anybody have it?