How long the results take to post on OFA for the Fanconi marker test is a bit variable. I would say that for most people it posts somewhere between 2-4 weeks after the email notification is recieved. They are also posted in batches so watch for other postings with the same Test Result Date as yours. If the batch posts and yours isn't there, then email OFA and let them know.
If you submit your CERF paperwork, the CERF results will automatically link to the OFA site. CERF sends an update to OFA about twice a month so again it is about 2-4 weeks for it to show up on the OFA site once the dog has an OFA page.