Currency error after upgrade to ver 1.0 "Hack attempt". And a few other problems.

[cecepee]

Time for some new questions.

It seems to me that many people have various problems after upgrading to ver. 1.1 final.

So does even i have also.

Currency update is not working. Error message: Hack attempt (Currency -> sign = €)

As mentioned by others, left and right image scrolling is not working. When we put the mouse pointer over a secondary image in products the image don´t change. And, When we click in a secondary image in products page instead of opening a new small window with a zoomed picture, the image is displayed in a normal window.

Language, My language pack (Swedish) is not working proper, Headings and titles is in English,

If i wanna fix my problems, where do i start?
Can i exchange/replace files from my old 1.0 install to make currency work?
Is there a module i can change with my old install to make product picture view and function as it should?
What file is missing or is incomplete for my language pack, which should i edit to make it show the headers and titles in my language?

All help, ideas and inputs are highly appreciated.

Thanks
Peter