hello i'm trying to install last oleg firmware but i have too heavy problem

mkdir /opt/tmp
mkdir /opt/tmp/ipkg
ipkg.sh update
ipkg.sh install ipkg
ipkg update


ipkg.sh update
when i try to make this command i received an error. can't download the content. why? where is the file to edit and convert dns to specify ip. thanks.

i make every passage before this, is normal that, if i put free on telnet result

0 on swap ?

strange, i make 500 mb of swap file.

thanks for help.