Making ExpressionEngine .htaccess allow commenting on index.html - php

Question

I've got a really quirky issue going on with ExpressionEngine. I've got a live test site here.
Essentially, if you attempt to comment on the index's 'Question of the Day,' you get a proper redirect, but the comment never gets to the database.
If I remove my .htaccess and set the site's index page in my control panel to index.php, then all is well. But with the .htaccess and index.php removed, things go haywire.
Here are the comments of my .htaccess file:
RewriteEngine on
RewriteCond $1 ^(weblog|member|search|site|rss|search|contact|show|commentary|include|about|blog|tags|preview|P[0-9]{2,8}) [NC]
RewriteRule ^(.*)$ /skad/index.php?/$1 [L]
Any tips to troubleshoot this or ideas where I could be going wrong? If it's any help, you can see a screenshot of my folder structure.
Thanks so much for any answers or simply help that you can give.
More: Also, here are headers for a successful post on a blog entry and a failing post on the index.
Update: I did recently find something else strange. With identical backend settings:backend settings http://droplr.com/1sMXc9+
And identical code:identical code http://droplr.com/1sN09A+
I get http://localhost:8888/skad as one form action and http://skadaddlemedia.com/v2/v2/index.php as the other form action.
At this point, I'm completely lost as to what is going on.

Answer 1

the "?" after index.php in the RewriteRule suggests that you are on a server running PHP as a CGI script and thus requires the "forced query strings", correct? This may be ancillary to the problem in the question, but it can complicate things to have this requirement. Looks like you're hosted at Site5... I have no experience with them but you might try the workarounds suggested here: http://expressionengine.com/wiki/Workaround_for_Forced_Query_Strings/

Answer 2

Try changing [L] to [L,QSA] to see if it helps.

Answer 3

I'm not sure but i think that CI and EE are pretty much the same as to the way the htaccess works so this may help you out. It is by a CI guru named Ethan, can't remember the last name, but he is very active in the CI community. Anyway the way that your HTACCESS file is has really been abandoned the new way to do it is a lot easier and you don't have to state your excluded folders it is the best thing since sliced bread for users of MVC or any frameworks i just love it.
# Customized error messages.
ErrorDocument 404 /index.php
# Set the default handler.
DirectoryIndex index.php
# Various rewrite rules.
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L,QSA]
</IfModule>
i can gurentee you that if it is a htaccess issue this bugger will fix it but the bext thing is you dont have to do a thing to it just drop it in and you never have to edit it again i swear by it. so freaking good like fried chicken in the summer yummy!
remember test it first by just dropping it in place of your current one you wont need all that crazy other stuff you got there in yours promise.