Mr. Blinky has created patches and custom content for the Tamagotchi P's which you can download here. The content much like the official Bandai downloads needs to be loaded to the P's from an IR-enabled phone or pda device.
The English patches will convert the language on the P's from Japanese to English. The zip file below includes instructions on how to install the patch. You MUST follow these instructions closely. I take no responsibility for any damage incurred on your Tamagotchi. Mr. Blinky has FAQs and credits for the patches on his website here.
The Tamagotchi P's uses Pierces to add custom content. If you remove a pierce for 12 hours, the P's will automatically remove any custom content from the unit. This patch allows you to keep your custom content active without having to keep the pierce linked. This patch is also required to keep the content on your unit for the VDP downloads below for more than 12 hours. Right-click and Save As... the image below to just download the patch, or click the zip file to download the patch with instructions from Mr. Blinky.