Preg_match and preg_replace trouble

I need to extract all text between the following strings, but not
include the strings.

"<!-- #BeginEditable "Title name" -->"
"<p align="center">#### </p>"

I am using preg_match(????, $s, $results)

but I have had no success. I tried items like.. "<!-- #BeginEditable
"Title name" -->".*."<p align="center">#### </p>"

But have had no luck.

Please any assistenc is appreciated.

In addition, I need to use preg_replace to replace the following:

<a href="/folder2/folder1/folder/page.html">

with

<a href="site.com=page.php?option=paper&itemid=page.h tml">


Again, any help is appreciated. The regular expressions confuse me, my
brain is about to explode from all the trouble shooting, I guess I'm
just not smart emough to figure it out.

PLEASE HELP!!

thanks