[Seaside] Newbie question

[Daniel Salama]

Hi all,

I'm new to Seaside and Smalltalk but what I've read so far, I like a 
lot.

Question I have is, how can I go to a URL in Seaside passing parameters 
bypassing some of the concept of the continuation framework. For 
example, what I understand of the concept is it treats the whole user 
experience as one sequential session. However, I have a need to trigger 
certain application actions based on events generated externally to the 
application.

This means that for some event generated outside of the application, I 
need to take the user to a particular location in the application with 
the parameters value from the outside world. For example, 
http://demo.seaside.app/process_url?param1=my_name&param2=my_telephone

Is there an easy way to do this? Also, if the user is not logged in 
(session) into the application, can I easily redirect the user to a 
login page and after a successful login, take him/her back to the 
original URL?

Thanks,
Daniel Salama