Unfortuanatly its the Spanish language that causes that problem. Sorry, There is nothing you can do unless you are an expert in C and convert that into a PRX file

As for the 'x' problem i've teamed up with a group of programmers and it's FIXED!!! Amoung with other glitches! Oh by the way Wakaru, it wasn't a easy task fixing this. Changing the C code is easy, converting it to an ELF file and then a PRX is alot harder.

We are currently working on another option but it's not yet done.
It allows you to hold down a key and it repeates it. e.g. if you typed in 'dog' and you wanted to type 'cat' instead, you won't have to press backspace x3 but just hold it down!
In the PiKey 0.3 Readme file, it clearly states that no one edits the PRX's and distributes them. We don't want to release it yet as more work still needs to be done and we don't have Fanjita's consent.
It's still a working progress but it should iron out the glitches.
Another project I want to work on takes more skill and requires a team that have a good knowledge in C/C++. It will be a plugin that automaticly presses the select button whilst in OSK to change it to the right character mode so you don't have to do it yourself.
I dunno, it's still an idea