Hmm, some part of this seems wrong...
The lower picture looks like RIM-7 Sea Sparrow with the wingtips unfolded, but this missile has a ground launching system so there shouldn't be an issue.
The upper picture is ~~definitely~~ probably RIM-162 ESSM, not RIM-7, and afaik does not have a ground launcher so it would require some kind of adaptation.
*Edit: on closer look, the fin design in the upper picture doesn't match anything made by the US. I think the missiles pictured here are actually 9M38M1:
The BUK launcher is designed to carry these missiles, so the upper picture is probably just a generic picture of a BUK with missiles loaded, not specifically one that Ukraine is using with US-supplied Sea Sparrow missiles.
Therefore, the reporting on the supply of RIM-7 to Ukraine is probably correct but they wanted to use it with a self-propelled launcher rather than the trailer launcher.
Edit 2: I found a picture of what looks like RIM-7 tubes mounted on a BUK platform:
But the source is a .ru website, so I'm uncertain of the authenticity:
There's some interesting discussion on retrofitting mobile launching systems in that article, but it seems mostly speculative as to what might be done and I don't know whether the picture is a real system or a photo edit done as an example.
