Toolkit

http://esdev.net/ultimate-prestashop-toolkit-50-resources
Haven't had the time to check it out yet

Moving a block

If you want to move it inside the same panel

• Go to Modules and click Positions
• Now you can move the block up or down inside the panel where it is located

If you want to move it to a different panel

• Click Transplant a module
• Select the Module/block that you want to move and where you want it
• Remove it from where it used to be

Translations

If you want to translate something in PrestaShop, don't edit any files!

This is the way to do it

• In the Back Office, go to Tools and Translations
• Select where the translation is to be made, usually in a Module or the Front Office, and click the flag of the country whose language you want to translate to
• Click Expand all fieldsets and search for the phrase you want to translate
• Enter the translation and click Update Translations

Simple as that
What this does is add the translated phrase(s) to a file called xx.php where xx is the ISO-Code of the country (where it is located depends on what you have translated).
It is also (I guess) possible to edit that file directly but I wouldn't recommend it.

OK, that's not too hard, but what if I want to add some text and translate that?

Lets say we want to add the text "This is a test shop, please do not order anything" to all product pages.

• Go to the themes directory (themes/prestashop by default) and edit the file product.tpl
• Enter this where you want the text to appear {l s='This is a test shop, please do not order anything'}
• Then follow the steps above and you will see that the phrase has popped up to be translated in the Back Office

Note that if the phrase is located in a module the xxx.tpl file is located in modules/xxx where xxx is the name of the module, and that you need to add the module name in the code, ie
{l s='This is a text to be shown in a module' mod='xxx'}
If you forget about the mod='xxx', the phrase will show up to be translated in the Back Office, but the translated phrase will never show up in the shop.

If you want to change a text, I'd advise you not to change it in the code but instead use the translation tool and translate from English to English.