You could store the script in /usr/script
make sure you make the script executable
( chmod +x /usr/script/autores.sh )
start it manually from telnet (/usr/script/autores.sh& ). note the & at the end.
OR
type the following (dm800# is the unixprompt in telnet.. )
dm800# cd /etc/init.d
dm800# echo '/usr/script/autores.sh&' > autores
dm800# chmod +x autores
dm800# cd /usr/script
dm800# chmod +x autores.sh
dm800# cd /etc/rc3.d
dm800# ln ../init.d/autores S20autores.sh
dm800# reboot