Editing .htaccess file?

[ssbismark]

Hello there,
I am hosting my site with hostmonster.Previously my site had a problem of displaying my main homepage on http://www.electronicsforeal.com/prestashop.'>http://www.electronicsforeal.com/prestashop. As for the main page http://www.electronicsforeal.com would be displaying the test prestashop page with dummy characters.I contacted hostmonster and they helped me solve this by editing public_html/.htaccess file so as to redirect the contents of http://www.electronicsforeal.com/prestashop to http://www.electronicsforeal.com so that both of the urls are pointing to the same main page.

the code i used was

# Use PHP5 Single php.ini as default
AddHandler application/x-httpd-php5s .php
# Hostmonster.com
# .htaccess main domain to subdirectory redirect
# Copy and paste the following code into the .htaccess file
# in the public_html folder of your hosting account
# make the changes to the file according to the instructions.
# Do not change this line.
RewriteEngine on
# Change electronicsforeal.com to be your main domain.
RewriteCond %{HTTP_HOST} ^(www.)?electronicsforeal.com$
# Change 'prestashop' to be the directory you will use for your main domain.
RewriteCond %{REQUEST_URI} !^/prestashop/
# Don't change this line.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# Change 'prestashop' to be the directory you will use for your main domain.
RewriteRule ^(.*)$ /prestashop/$1
# Change electronicsforeal.com to be your main domain again.
# Change 'prestashop' to be the directory you will use for your main domain
# followed by / then the main file for your site, index.php, index.html, etc.
RewriteCond %{HTTP_HOST} ^(www.)?electronicsforeal.com$
RewriteRule ^(/)?$ prestashop/index.php [L]

and redirection was successful.
Now the problem arose again after i enabled friendly url and generated .htaccess file by creating /prestashop/.htaccess

the old .htaccess file above had been replaced by this here

# URL rewriting module activation

RewriteEngine on

# URL rewriting rules

RewriteRule ^([a-z0-9]+)\-([a-z0-9]+)(\-[_a-zA-Z0-9-]*)/([_a-zA-Z0-9-]*)\.jpg$ /prestashop/img/p/$1-$2$3.jpg [L,E]
RewriteRule ^([0-9]+)(\-[_a-zA-Z0-9-]*)/([_a-zA-Z0-9-]*)\.jpg$ /prestashop/img/c/$1$2.jpg [L,E]
RewriteRule ^lang-([a-z]{2})/([a-zA-Z0-9-]*)/([0-9]+)\-([a-zA-Z0-9-]*)\.html(.*)$ /prestashop/product.php?id_product=$3&isolang;=$1$5 [L,E]
RewriteRule ^lang-([a-z]{2})/([0-9]+)\-([a-zA-Z0-9-]*)\.html(.*)$ /prestashop/product.php?id_product=$2&isolang;=$1$4 [L,E]
RewriteRule ^lang-([a-z]{2})/([0-9]+)\-([a-zA-Z0-9-]*)(.*)$ /prestashop/category.php?id_category=$2&isolang;=$1 [QSA,L,E]
RewriteRule ^([a-zA-Z0-9-]*)/([0-9]+)\-([a-zA-Z0-9-]*)\.html(.*)$ /prestashop/product.php?id_product=$2$4 [L,E]
RewriteRule ^([0-9]+)\-([a-zA-Z0-9-]*)\.html(.*)$ /prestashop/product.php?id_product=$1$3 [L,E]
RewriteRule ^([0-9]+)\-([a-zA-Z0-9-]*)(.*)$ /prestashop/category.php?id_category=$1 [QSA,L,E]
RewriteRule ^content/([0-9]+)\-([a-zA-Z0-9-]*)(.*)$ /prestashop/cms.php?id_cms=$1 [QSA,L,E]
RewriteRule ^([0-9]+)__([a-zA-Z0-9-]*)(.*)$ /prestashop/supplier.php?id_supplier=$1$3 [QSA,L,E]
RewriteRule ^([0-9]+)_([a-zA-Z0-9-]*)(.*)$ /prestashop/manufacturer.php?id_manufacturer=$1$3 [QSA,L,E]

And the previous problem of two different pages for http://www.electronicsforeal.com/prestashop and http://www.electronicsforeal.com is here again.

Could somebody help me how i can manipulate the new .htaccess code to get http://www.electronicsforeal.com/prestashop point to my domain name http://www.electronicsforeal.com?

I have tried to add the old .htaccess code to the new one generated after generating .htaccess but didn’t work.

Thanks and very sorry for the long explanation and code