Did you ever get your Entei and Raikou? I have a fresh untouched Raikou imported from SoulSilver (just as an FYI, I clone legendaries, so this one is a clone while the original is being maintained in the other game). The only thing I've done is "nicknamed" it since it appears as "RAIKOU" otherwise when imported.
I haven't taken care of the roaming Entei yet, but will get it done sometime. I do have a Lv.100 Event Entei however; someone trained it fully before I got it.