It's bundled e.g. with 0.8.2. Upon installation when chosing components scroll down to "Miscellaneous K-Meleon Tools", then there's [x] "Splash screen tool", "K-Meleon Loader" and "K-Meleon Remote Control".
The tool was removed because no one wanted it (or didn't say so), mentioned by Ulf on the dev-list about a year ago.
Another caveat with the splash screen tool is (if it's the one I'm thinking of), it will create a splash screen, however K-Meleon will only load *after* the splash screen is displayed, not during the loading which for some people may not be desirable.
Still it is a way of doing a splash for K-Meleon so it can't be all bad.