Trouble with implementing translation

Question

I'm having some trouble getting my translation to work. I have a very basic application which is available in two languages. I have mapped and published my translation.
What I am trying to do is have the page translate when clicking the language button in the navigation bar. I created two navigation bar entries, which conditionally display based on the current value of FSP_LANGUAGE_PREFERENCE... My application globalization settings are set to "Item Level Preference"
The navbar entries are set as per following:
French entry
Redirects to page in application... &APP_PAGE_ID.
REquest: FSP_LANGUAGE_PREFERENCE
Set items: FSP_LANGUAGE_PREFERENCE
With these values: fr-ca
condition type: Request = en-ca
English entry
Redirects to page in application... &APP_PAGE_ID.
REquest: FSP_LANGUAGE_PREFERENCE
Set items: FSP_LANGUAGE_PREFERENCE
With these values: en-ca
condition type: Request = fr-ca
When I first run the application, I don't see any buttons... most likely because the request param is not set...
I'm using APEX 3.0... I've searched the forums and read the documentation, but nothing seems to work...
If anyone can point me in the right direction, I'd appreciate it
Thanks

Answer 1

Thanks guys for all your feedback... Part of the problem was my lack of understanding on how APEX handled the translation process.... I needed to "seed" my application whenever I made ANY change to the main application, to sync up my translated application.
I was able to get things working, and thought I'd share my findings with others if it can be of any use.... as well as get my implementation validated by more experienced apex developers such as yourselves...
The application globalization is configured to derive the language from an item level preference (app item FSP_LANGUAGE_PREFERENCE)
I started by creating an application computation to assign a default value to FSP_LANGUAGE_PREFERENCE with a computation point of "On new instance", static assignment = en-ca and with a condition that the application item FSP_LANGUAGE_PREFERENCE is null . For some reason, a computation point of "Before Header" was not setting it...
I then created an "onload: before header" conditional application process to redirect the page, if the REQUEST item = SETLANG. This is based on the post from Scott Spadafore Re: Application Preference (use FSP_LANGUAGE_PREFERENCE).
So the process will redirect to the current page if the REQUEST = SETLANG. This will ensure the NLS_* parameters are set according to the FSP_LANGUAGE_PREFERENCE... Joel Kallman's posts helped to understand why this is required... Re: Set FSP_LANGUAGE_PREFERENCE in URL
I created two navigation bar links, one for french and one for english... each one conditionally displays depending on the current FSP_LANGUAGE_PREFERENCE value (ie "English" link displays if FSP_LANGUAGE_PREFERENCE = fr-ca)
Each link will set the REQUEST item = SETLANG (this is the hook for the app process redirect), and also sets the FSP_LANGUAGE_PREFERENCE to target language. It will then redirect to the current page...
All this to flip between the english and french languages, on each page within my APEX application... thanks to all who posted solutions and tips...
Message was edited by:
pl_sequel
Message was edited by:
pl_sequel
Message was edited by:
pl_sequel