Woah there, down boy

OK start with the POP, that should be straightforward enough, maybe let Sophie run for a few minutes to experience the excitment that is the POP (ok not really exciting but anyway

), wouldn't be too worried about it since it will wipe Sophie's memory clean. You can pretty much go straight from the POP to the upgrade.
Then the next step is the 1.0, after that upgrade it would be best to let Sophie run through one charge just to be on the safe side

Remember to read the instructions first of course. I don't think going straight from 1.0 to 1.1 without a full charge in between is a good idea.
Once that charge is complete and your battery is ready to go then go ahead with the 1.1 and then from there Sophie should be all back to normal

(After the hatching of course).
Of course if you wanted you could do what I did with Lilo many moons ago and just go straight from the POP to the 1.1

It worked fine for me, and if it doesn't you can always go back to the POP and start over. Afterall you don't think Ugobe/Innvo start with the 1.0 on each and every Pleo do you
