Hola Hildergan entra en la configuracion del apache el archivo se llama
httpd.conf hay una seccion que dice esto :
# Port: The port to which the standalone server listens. Certain firewall
# products must be configured before Apache can listen to a specific port.
# Other running httpd servers will also interfere with this port. Disable
# all firewall, security, and other services if you encounter problems.
# To help diagnose problems use the Windows NT command NETSTAT -a
#
Port 80
Simplemente cambias el puerto.
Espero haberte ayudado.
Suerte y Salu2.
Bye
