OneCare is not available for purchase in your country,
In which countries and languages is Windows Live OneCare available?
The Windows Live OneCare subscription service is available in the following countries and languages: Australia (English), Austria (German), Belgium (Dutch, French), Brazil (Portuguese), Canada (English, French), France (French), Germany (German), Hong Kong (English), Ireland (English), India (English), Italy (Italian), Japan (Japanese), Mexico (Spanish), Netherlands (Dutch), New Zealand (English), Singapore (English), Spain (Spanish), Switzerland (French, German), United Kingdom (English), United States (English, Spanish).
Furthermore, OneCare will no longer be sold anywhere late this year, being replaced by Morro, an antivirus solution that has not yet been released, that will be free and will be available in many more countries than OneCare, as far as I know.
-steve
Microsoft MVP Windows Live / Windows Live OneCare & Live Mesh Forum Moderator