Gosh the Web is a wonderful place, or can be sometimes at any rate. I spotted a link from y'all coming across to my site no more than about an hour ago; I went and found my photo, scanned it, found the CIL number from Gnomon, wrote my little page, and FTP'd it to my site. You can now look at the statue base and its inscription
here; or you can go back to the link given earlier, and now you'll notice that the ID number in the leftmost column there is a link, which'll take you to the new page.
I'd also translate it somewhat differently; FC at the end of an inscription -- and notice the spacing -- is almost always "faciendum curavit" ("arranged to have this made or done"): FECIT CIVI, at any rate, is not Latin (CIVI is not a whole word!) nor is *FECIT CIVIBUS or CIVITATI a normal phrase); and although I'll go along with Decreto Decurionum, I'm not completely sanguine about it, since I've never bumped into DDFC, and the FC is Glabrio doing it, while the DD would be the city doing it officially. DD... can mean so many things! Still, the general drift of the inscription is there: Glabrio, patron of the colony (of Ostia), wished good health to the emperor (or wished to have people believe so), and made arrangements, quite possibly with the decuriones, to have a statue and its inscription placed in some public place.