quick and painless pine question?

[Karen Lewellen]

Hi all,
I have a Pine question, and admit I am in Ernest.
I use pine on my shell service and it is  pine 4.61.
Here is my question.  I really need to be able to search through my in-box 
and save e-amil either from a certain source, or with a certain word or 
phrase in the subject line to different folders.  A command or command for 
doing both will be helpful.  I have no desire to search all of the text of 
the e-e-mails, as this is not needed, and as I am trying to filter over 7 
thousand e-e-mails, want to make this process a swift but  reliable one.  It 
is my understanding that there is a command for this.  I already know, for 
example, that "w" will allow me to search for a word, but i want to search 
for them all by either  source, i. e. from whom, or something in the 
subject line, and then save all the e-mails at once if possible into a new 
folder.  How can this be done, and need I create the new folders first?
Thanks much,
Karen l