I've just downloaded this software update, have to admit what a difference!

However just so i don't look and/or sound like a total spanner, i was under the impression i was downloading the v4.5.0.52 software however the package version is v4.5.0.52 whereas the software installed on my phone is v4.5.0.37

Is that right? I just assumed that because the package i was downloading was named v4.5.0.52 i was expecting the software version on my BB to be v4.5.0.52 as well?

Could some kind soul explain this please? or direct me to a thread which already does please?