How to display dynamically the category name in frontend,admin and also in email sent in virtuemart in the desired position?

Mostly in virtuemart display category name in the admin but you cannot control where you want to display.

How to fix the selection of country if it did not select any country?

Just like this:

and it will remove all the data first inputed.

How to make the data still intact?
1. Go sitename.com/administrator/components/com_virtuemart/classes/
2. Open ps_userfield.php at line 696
3. Or find the code:

else if( formelement.options ) {

4. and after this code paste this code:

if(document.getElementById('country_field').value == ''){
                            alert('Country is required!');
                            return false;
                        } 

Then the bugs is fix.

How to fix the required fields issue in joomla virtuemart?

Notice:
this scenario exist when the user does not log in or sign in.
Here's the scenario how bugs exist in virtuemart:
1.You need to shop then select one product you want.
2.Add this product to cart.
3.Then Click check out.
4.Then click automatically the "Send Registration" button.
5.Try to put some text in other required field and click the "Send Registration" button again.

then after here's the picture:

 as you observed just like others do even you filled the other required fields the label still in RED color.

then how to solve this?

1. You have to custom code the core code.
2. Go to yoursite.com/administrator/components/com_virtuemart/classes/
3. Open ps_userfield.php in line 664
4. Or try to find this code

if( !formelement ) { continue; }

5. Then insert this code after the code above

document.getElementById(required_fields[i]+'$div_id_postfix').className += 'temp';

6. And save it, now your problem is fixed.

try to comments if problem occur

What is a magento connect extension key?

Please don’t edit the page with the Extension key to your specific product - this is a generalized wiki article pertaining to Extension Keys in general.

---

The Magento Extension Key
Obtain an extension from Magento Connect

1. Click the link to Magento Connect if you need to go and find an Extension
2. Click "Get Extension Key", agree to terms, and then copy the extension key. 

Once you obtain the Extension Key from Magento Connect, follow the instructions below to install the Extension to your site. Pay special attention to the extension release: For example, if it is Beta you will need to configure your store to accept Beta extensions.

1. Sign into your Magento store admin 
2. Navigate to System > Magento Connect > Magento Connect Manager. 
3. Paste in the extension key and click "Install". If you run into any issues, consult the extension documentation forums on Magento.

If you need to configure your store to accept Beta or other releases.

1. Sign into your Magento store admin 
2. Navigate to System > Magento Connect > Magento Connect Manager. 
3. Select the "Settings" tab, and choose the "Preferred State"
4. Save Settings
5. Return to the Extension Tab, paste the extension key and click "Install"

How to enable the adsense problem in the site?

is there any one has the idea in solving this problem...

About AdSense and Google Affiliate Network for Your Blog

About AdSense and Google Affiliate Network for Your Blog

How to create a custom maintenance page in magento?

New Magento 1.4 brings changes in how errors are displayed along with an easy way to put your favorite store into maintenance mode.

If you check index.php file of new Magento 1.4, you’ll notice one interesting thingy, it checks for existence of “maintenance.flag” file in store root, if it’s found your store is put into maintenance mode. Service Temporarily Unavailable page is displayed with Please try again later message. Remember that administration can’t be accessed in maintenance mode along with the store.

Developers probably noticed that errors also are no longer displayed like before, as mentioned on Magento blog:
Since version 1.4.0.0 for security reasons the trace in the Magento error report page is disabled by default. The “Error log number” does not give any information about the error. To enable the trace copy the errors/local.xml.sample to errors/local.xml and follow the instructions described in that file.

By default, error logs are placed in /var/report, named by mentioned log number. local.xml file is well commented, so open it and check possible configuration options. I really like emailing of error reports to specified email address.

If you want to change default maintenance look, you can change myskin value in /errors/local.xml file and create new /errors/myskin folder based on /errors/default. It functions the similar way as themes, if the phtml file isn’t found in your skin, the default will be used.