You can unlock your phone OTA from Orange, there are tons of threads on this. However, you might be lucky and be able to run the .scr files without installing PocketCandy. I was able to on my MPx200, just run them from your phone, I put them on my SD card and created links to them. I have installed PocketCandy now though which makes things easier.
Have you unlocked your phone yet? You won't be able to install unsigned apps such as Pocket Candy without an unlock (appologies if you already know this) there is a 10 page thread:
which shows you how to do it and a very cool guy 'Alphaflux' has provided some .cab files and an app for you to download. I suggest you read the WHOLE thread to page ten before you start downloading anything as you only need to download some of the files availible in the thread.
The files are:
Unlock (App Only).CAB
The last file there is used to re-lock the phone incse you need to, some people in the thread needed to during testing of the unlock, but I only installed the final version and haven't needed to re-lock my phone so far.
Everything will become clear in the thread.