Power Point: How can I change the text?

Dear All,

I have just heard about you. My name is Andrew and I went blind four years ago. 
I use Jaws 5.10 and have Windows XP and Windows 2000 in the laptop and desktop 
respectively. I have not got a lot of idea about screen-readers due to my lack 
of experience but I have several questions I need to solve:

I am a translator and need to learn how to change a Spanish Power Point 
presentation so that it will read in English. What I need to do is enter the 
various slides, select the text, and overwrite it in English without changing 
the pictures.

How do I do that with Jaws 5.10? Are there any keystrokes?

A friend suggested to save the Power Point presentation in an MS Word format, 
change the text and then save the MS Word document as a Power Point 
presentation again. Does that work?

Cheers to all and lovely meeting you.

Andrew.

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