LinuxQuestions.org - Nginx location, return and rewrite directives

I am having a hard time learning to do return and rewrite directives.

the conditions are like gibberish to me.
I am trying to learn by example, so I made one up.
in the htdocs of my server we have this file and folders.

Code:

~:#>ls htdocs

admin.php

api (dir)

api.php

archiver (dir)

config (dir)

connect.php

cp.php

crossdomain.xml

data (dir)

favicon.ico

forum.php

group.php

home.php

index.php

install (dir)

member.php

misc.php

plugin.php

portal.php

robots.txt

search.php

source (dir)

static (dir)

template (dir)

uc_client (dir)

uc_server (dir)

userapp.php

NOW; we just focus on the uc_server client ;

Code:

~:#> ls /htodcs/uc_server

admin.php

api (dir)

avatar.php

control (dir)

crossdomain.xml

data (dir)

images (dir)

index.php

install (dir)

js (dir)

lib (dir)

model (dir)

plugin (dir)

release (dir)

robots.txt

view (dir)

A.) So what is happening is in uc_server; I think we are better to create a block location like

Code:

location /uc_server/ {



        }

and do or conditional directives in there right????

B.) I want these to happen:

Code:

http://DOMAIN.DOM/uc_server/admin.php/uc_server/ ===changes to===> http://DOMAIN.DOM/uc_server/

AND

if there is ...../install/index.php/.... in any requested links ;the "/install/index.php/" part would be omitted and the link would processed without that part.
THANKS ALOT