seo4smf problem with sitemaps and new topic. urgent!

I've installed seo4smf 2.9.10 without any problems and I thought it was working but there are some issues I couldnt get.

Normal topic and board redirections work successfully. My url's are like expected.

Problems are about sitemaps and new topic and some admin functions, I guess there is something wrong with .htaccess files

so let me explain my site structure

I have a website say with url : http://www.myurl.com
And wordpress 2.8 is installed at my base url. So my root directory have a .htaccess directory.

My htaccess file at my root :

Code:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

And I have smf 1.1.9 installed at http://www.myurl.com/forum
After installing seo4smf I have a new htaccess file at /forum directory

My /forum htaccess file :

Code:

RewriteEngine on

#Some apache servers need Rewritebase.
#delete # from start of Rewrite base to enable it.
#If your forum is something like http://www.forum-example.com/forum then modify your
#RewriteBase in this way: RewriteBase /forum

RewriteBase /forum

#Archive/Sitemaps
RewriteRule ^sitemaps-([a-zA-Z0-9-]*)\.html index.php?dummy=1&action=seo4smfsitemaps&sa=$1 [L]

#uncomment if you use beautifying url actions
#RewriteCond %{REQUEST_METHOD} =GET
#RewriteCond %{QUERY_STRING} ^action=(.*)$
#RewriteRule ^(.*)$ seo4smf-redirect.php?a=%1 [R=301,L]

RewriteCond %{QUERY_STRING} ^topic=([0-9]*)$
RewriteRule ^(.*)$ seo4smf-redirect.php?t=%1 [R=301,L]

RewriteCond %{QUERY_STRING} ^topic=([0-9]*).([0-9]*)
RewriteRule ^(.*)$ seo4smf-redirect.php?t=%1 [R=301,L]

RewriteCond %{QUERY_STRING} ^board=([0-9]*).([0-9]*)
RewriteRule ^(.*)$ seo4smf-redirect.php?b=%1 [R=301,L]

RewriteCond %{QUERY_STRING} ^action=profile;u=([0-9]*);(.*)$
RewriteRule ^(.*)$ seo4smf-redirect.php?u=%1;param=%2 [R=301,L]

RewriteCond %{QUERY_STRING} ^action=profile;u=([0-9]*)
RewriteRule ^(.*)$ seo4smf-redirect.php?u=%1 [R=301,L]

#Tiny Portal Old Url's
RewriteCond %{QUERY_STRING} ^page=([0-9]*)
RewriteRule ^(.*)$ seo4smf-redirect.php?p=%1 [R=301,L]

#Rewrite Old urls
RewriteRule ^index.php/board,(.*).html seo4smf-redirect.php?b=$1 [R=301,L]
RewriteRule ^index.php/board,(.*).html;(.*) seo4smf-redirect.php?b=$1&o=$2 [R=301,L]

RewriteRule ^index.php/topic,(.*).html seo4smf-redirect.php?t=$1 [R=301,L]
RewriteRule ^index.php/topic,(.*).html;(.*) seo4smf-redirect.php?t=$1&o=$2 [R=301,L]

#Bad Url's
#RewriteCond %{REQUEST_URI} ^(.*)\.html$
#RewriteCond %{REQUEST_URI} !^(.+)/(.*)-t([0-9]*)\.([0-9]*).html$
#RewriteRule ^(.*)-t([0-9]*)\.([0-9]*)\.html seo4smf-redirect.php?t=$2 [R=301,L]

RewriteRule ^(.*)/-t(.*).html seo4smf-redirect.php?t=$2 [R=301,L]
RewriteRule ^-b(.*)/$ seo4smf-redirect.php?b=$1 [R=301,L]
RewriteRule ^-b(.*)/(.*)$ seo4smf-redirect.php?b=$1 [R=301,L]
RewriteRule ^(.*)/-b(.*)/$ seo4smf-redirect.php?b=$2 [R=301,L]

#New board URL's
RewriteRule ^(.*)-b([0-9]*)\.([0-9]*)/;(.*) index.php?dummy=1&board=$2.$3&$4 [L]
RewriteRule ^(.*)-b([0-9]*)\.([0-9]*)/$ index.php?dummy=2&board=$2.$3 [L]
RewriteRule ^(.*)-b([0-9]*)\.([0-9])$ index.php?dummy=2&board=$2.$3 [L]

#New topic URL's
RewriteRule ^(.*)-t([0-9]*)\.([0-9]*)\.html;((\?:from|msg|new)[0-9]*);(.*)$ index.php?dummy=1&topic=$2.$4&$6 [L]
RewriteRule ^(.*)-t([0-9]*)\.([0-9]*)\.html;((\?:from|msg|new)[0-9]*) index.php?dummy=1&topic=$2.$4 [L]
RewriteRule ^(.*)-t([0-9]*)\.([0-9]*)\.html;(.*)$ index.php?dummy=1&topic=$2.$3&$4 [L]
RewriteRule ^(.*)-t([0-9]*)\.([0-9]*)\.html$ index.php?dummy=1&topic=$2.$3 [L]

#New profiles URL's
RewriteRule ^(.*)-u([0-9]*)\.html;sa,(.*);start,([0-9]*);delete,([0-9]*);sesc,([a-z0-9]*)$ index.php?dummy=1&action=profile;u=$2;sa=$3;start=$4;delete=$5;sesc=$6 [L]
RewriteRule ^(.*)-u([0-9]*)\.html;sa,(.*);start,([0-9]*)$ index.php?dummy=1&action=profile;u=$2;sa=$3;start=$4 [L]
RewriteRule ^(.*)-u([0-9]*)\.html;sa,(.*)$ index.php?dummy=1&action=profile;u=$2;sa=$3 [L]
RewriteRule ^(.*)-u([0-9]*)\.html index.php?dummy=1&action=profile;u=$2 [L]

#New Tinyportal Articles URL's
RewriteRule ^(.*)-p([0-9]*)\.html index.php?dummy=1&page=$2 [L]

#New action Url's - uncomment if you use beautifying url actions
#RewriteRule ^(.*)\.html(.*)$ index.php?dummy=1;action=$1;$2 [L]
#RewriteRule ^(.*)\.html$ index.php?dummy=1;action=$1 [L]

#Sitemaps
RewriteRule sitemap.xml sitemaps.php [L]
RewriteRule urllist.txt urllist.php [L]

Seo is correctly working but when I type http://www.myurl.com/forum/sitemap.xml
I get wordpress' 404 not found page. Strangely I can open http://www.myurl.com/forum/sitemaps-home.html and see my sitemap but xml file does not work.
Since sitemap.xml is redirected to sitemaps.php I tried to open sitemaps.php manually but that gives a 404, too. I'm sure the files are not damaged.

Same for opening a new topic. When I opened a new topic I get 404 page of wordpress but after that I can see the topic. So topic is registered to database.

And I get the same 404 page while updating some settings at admin panel.

I'll be glad if you anyone can help, anything on your minds...
Thanks.