Juli; Welcome to the Forum!
I am still trying to figure out how you downloaded a GB (version 3.0) and a GB (version 3.6.5) from the App Store yesterday. At any rate, if the logs were created in GB (version 3.0) and if you updated to GB (version 3.6.5) your logs should still be there. This is assuming that your did or will backup you iPhone information, to iTunes, prior to the install of the new GB (version 3.6.5) app.