In that option in my profile I can get the answers to the issues, I'm watching, notify me to my email?. (I hope you understand the question)
What option is that?
and second, is it safe to buy here?
http://www.amazon.co.uk/Watership-Down-The-Complete-Collection/dp/B000BLBSOK
http://www.play.com/DVD/DVD/4-/704869/Watership-Down-The-Complete-Box-Set/Product.html
to pay by Pay Pal or VISA card and get to Mexico.
Thank you very much for your attention and have a beautiful day in Watership Down.
I bought my copy of Watership Down tv show from amazon.co.uk and it got to me without any problems. 
The only issue is this. DVDs with episodes are coded in Region 2 (read about region codes here). It means that those DVDs can be played by devices typically sold in Region 2. I live in Eastern Europe, so I wasn't able to watch those DVDs on my TV. However, I was able to play them on my computer, but I had to use some region free DVD software to do that.
EDIT:
I used that program: DVD Region + CSS Free
Many, thank you very much this will also serve, but also own a multi-region DVD 1,2,3,4. When I can I will have the series in my power!
And on the question, I will try to be more clear:
How can I follow a theme?. for example
get announcements monitored topic. In this case this theme welcome.
I do not get the answers to my email.
I hope to have been clear.
Hello and welcome. My usual online handle is simply "Rabbit" too but Mallow can be used to distinguish among us rabbits ;D. Let's be acquaintances yes?
Sorry friend, I do not quite understand your question. But if I remember ok Mallow is a captain Efrasa right?
The reason is because the book I read it in Spanish. Watership Down.
Myrkin, Darkling Nocturna,
Mallow
thanks for the warm welcome and for answering my questions.