Problem installing Lynx

[angloparis]

I am experiencing difficulty in installing Lynx on my Cowon X7. I have downloaded Lynx and extracted the files, and copied them into System\Flash UI. before I moved Lynx in the Directory, there was a Directory called SOL in System\Flash UI.
After moving Lynx into the Directory, Flash UI contained a directory called Lynx, a Directory called SOL, and 5 Lynx files including mainmenuN. I renamed this last file mainmenu1, and then restarted my Cowon. Nothing happened.. I just get the same Cowon interface that I had before. What am I doing wrong?
I would also like to know where to install Sense in the Cowon. can anyone help?
Best regards
AngloParis

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