If the exact one isn't there you probably aren't missing it, what ever was there looked similar to what you want. A quick look at their sensor page indicates no SRF02 and google didn't show one either so that's probably as close as you get. It may be worth while to do a search in the projects on the Fritzing main site as you can sometimes pickup parts you want there in projects. All I see there is an srf04 with no part available either though. It is odd because there are a number of Fritzing drawings (but no parts files) of that sensor around. Perhaps one of the longer term Fritzing users will have a pointer.
Peter