noob initial setup on the powerstack 6248 from a 3248

hello all - 

we are a church with a very simple setup.  we need to have one port dedicated to a public wi-fi, and the rest of the ports for the church office.  one (or more) ports will connect to our router.

so, i am thinking about a setup like this (again, please remember i am a noob)

port 1 - connected to a dedicated pc to monitor switch
ports 2-3
   port two goes to our wi-fi wireless-access-point, port
   port three goes to our router
ports 4-48
   ports 4 through 47 are all the computers, printers, etc
  port 48 also goes to our router

i figured out how to get into the serial interface, by entering:

1.     enable
2.     config
3.     ip address 192.168.123.199/255.255.255.0
4.     ip default-gateway 192.1.68.123.199
5.     exit

then i went into the website interface, created two vlans, and set ports 2&3 to "U" on the pubic-vlan, and set ports 4-48 to "U" on the office-vlan.

i would like to run this past anybody who knows more about this than i do (which includes just about everybody)

previously we had a PS-3448 and i just simply ran the following script (below), but that didn't work on this new switch.  on the PS-3448 i only needed one cable for the router, not two.  but again i am only guessing here.

any help would be most appreciated by me and everybody at the church!

PS-3448 setup script below:

enable
config

interface vlan 1
ip address 192.168.123.234 /24
exit

ip default-gateway 192.168.123.254
username admin password admin level 15

interface ethernet e1
switchport mode private-vlan isolated
exit

interface range ethernet e(2-48)
switchport mode private-vlan community
exit

interface ethernet g4
switchport mode private-vlan promiscuous
exit

vlan database
vlan 1000
exit

interface vlan 1000
private-vlan primary
private-vlan isolated 20
private-vlan community add 10
exit

interface range ethernet e(2-48)
switchport private-vlan community 10
exit

interface ethernet g4
switchport private-vlan promiscuous 1000
exit

interface ethernet e1
switchport private-vlan isolated 1000
exit
exit
copy running-config startup-config
Y

show vlan private-vlan primary 1000
show running-config
show startup-config