anyone can tell me why my wallet don't synchronise with the network i have the wallet v1.2
You need to put the "grumpycoin.conf" file on the correct folder. Go to the first post of this thread, copy the content, paste on a software like notepad and save the file on the correct folder for your Operational System:
Linux
$HOME/.grumpycoin/ or /home/<username>/.grumpycoin/grumpycoin.conf
Mac
/Users/<username>/Library/Application Support/Grumpycoin/grumpycoin.conf
Windows
XP -- C:\Documents and Settings\<username>\Application Data\Grumpycoin\grumpycoin.conf
Vista, 7 -- C:\Users\<username>\AppData\Roaming\Grumpycoin\grumpycoin.conf