Hi mate
I didn't get it.
You stated that you already installed web disp and then you asked me regarding integration between web disp and sap product; did you specify message server host (in message server parameters section) and "create configuration for system of size" (i.e.:medium) during installation? If yes, you already got it.
If not, you can repeat the installation adjusting those parameters or configure the same things pointing to http://messageserverhostname:message port choosen with 66 in the end/sap/admin/default.html
(i.e.:http://ilovesap.custom.local/8166/sap/admin/default.html)
If none of the previous, let me know further details and i'll help u
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