Yes, as long as you don't mind forwarding ports.
ie
web pages - port 80 ( ignore ssl for now )
will be served by the sme server.
port 81 could be forwarded to port 80 on the qube.
so
http://smeserver:81 would really be the qube.
Other option.
Create a php script, which acts as a gateway ( ie. fetches pages from qube and displays them ).
What spec is your server ?
If it is better than an AMD 400 then drop the qube, sme will out perform it hands down.