I don't have the UMD but I'm guessing it should work the same way as how I did it...
*You need the latest sony original firmware, 6.30 installed before you can update*
1) Locate the FTB3 game in your PSP's XMB menu. Yours should be the FTB3's UMD icon.
2) There will be a a video of the game and sound running (do not start the game!) and here is where you hit the triangle button.
3) Now you be greeted by a menu that shows - Start, Internet Search, Update, Delete, Information, etc. Select update.
4) You will automatically log onto PSN where the it will prompt you there is an update to 1.10.
5) Proceed to update by selecting "yes".
You should be able to finish the updating process and you'll finally be on 1.10.
Anyway the XMB is also know as the "Cross Menu Bar" which is what Sony named the PSP's interface.
To check that your FTB3 is on version 1.10, follow through the instructions from step 1 to 3. This time, select Information and it should display your game version.
I hope this helps!
Anyway, the XMB or "Cross Menu Bar" is what Sony names the PSP's interface. The PS 3 also shares the same interface.