I must have been thinking about 6.5.
No, that's no different.
Is there the ability to open ports from the server manager?
This has been answered here many times. There is a contrib panel available, but it doesn't work for many, because they do not understand why they are trying to open ports. Ports only need to be opened if you have added a service to the server itself. Those services should be configured by their own e-smith-blah package, and that package will provide a template fragment for the masq script which opens any ports which need to be opened, for a public service.
In 7.0, all you need to do to open a port is to create a service db record:
config set blah status enabled access public TCPPort nnn
then:
expand-template /etc/rc.d/init.d/masq
/etc/rc.d/init.d/masq adjust
Voila!