Hi Ahmed
When you post a fixed price listing, and for example price it at $10000.
Then you press preview, if you then press make changes to the listing it changes the price to $10.
I checked it on your demo and it does the same.
http://www.mewsoft.com/cgi-bin/auction/auction.cgi?action=ViewItem&ID=1188993397&Cat_ID=10&Lang=English
Thanks Nicol
To fix, update the cgi file Sell.pm from the latest zip.
Mewsoft Support www.mewsoft.com