Magento Install 500 error after asking for db info.

Well an update to what is going on. I signed up to Magento and got their community version of the the install and everything installed fine. So this comes down to there is something not right with the quickinstall of JMLingerie. I would appreciate it if you could have a look at your install and see if you can see what might be the problem.*

I look forward to hearing back from you.

D..

Update.
*Here is some information that might be helpfull

Congratulations! Your server meets the requirements for Magento.
You have PHP 5.2.0 (or greater)
Safe Mode is off
You have MySQL 4.1.20 (or greater)
You have the curl extension
You have the dom extension
You have the gd extension
You have the hash extension
You have the iconv extension
You have the mcrypt extension
You have the pcre extension
You have the pdo extension
You have the pdo_mysql extension
You have the simplexml extension

I have just downloaded a JM Lingerie quickstart package and installed for testing at my end without problems. I guess there might be something wrong with your hosting configuration, for instance the max_execution_time php settings is too low, you could try to increase that value. If you are not sure on this, please contact your hosting provider to get better help.

I should have anticipated this.

Here are the "Fixes I have tried" and non of them work.

Solution #0
max_execution_time: 9999

Solution #1

This error might be caused because you have not set the correct permissions for the magento folders. To solve this go to File Manager and then change the file permission of index.php file from 664 to 644. Also change the permissions of downloader/index.php file to 644 as well otherwise when you will try to access System > Magento Connect >Magento Connect Manager (after magento installation) by logging to magento admin, you will get 500 Internal Server Error.
You can also try this tool, it’s a magento cleanup utility. It will set the correct permissions for your complete magento installation:
Download it
Unzip magento-cleanup.php to the root directory of your magento installation
Browse to http://yourdomain.com/magento/magento-cleanup.php

Solution #2
Your server does not support some of the magento specifications. You can easily test this using the magento check utility. Follow the steps below to check your server’s software, if there is an incompatibility this utility will show it.
Download it
Unzip magento-check.php to the root directory of your magento installation
Browse to http://yourdomain.com/magento/magento-check.php

Solution #3
Htaccess file which is located at Magento root folder. It will be this case if you meet Internal Server Error on every page. Try to remove it for testing purpose
If your website was running file for a long time, then it must be a change at Server side, just submit a ticket to Hosting Company.

Solution #4

*Curl I had already installed
If the curl extension is missing you can get 500 Internal server error. You can install it using the command below:
apt-get install curl libcurl3 libcurl3-dev php5-curl

You can pm me your site url, database and cpanel credentials, I shall try to install it for you.

I do not have cpanel, I use plesk.

The server etc is owned by my wife and she has asked me not to give out the information as we have had a support person for another program screw up the server before and well that stopped that.

I can upload all the needed files from the jm_lingerie quickinstall to the domain and you can try that from there and if it does not install let me know and I can work with you to solve it?

D..

P.s
I would also like to know why it is not installing once it does get installed so when we move it over to his perminant server position I can solve the issue if it happens again.

It is hard to detect the problem just by trying to install the package, I would need FTP credentials as well as databate info to investigate further.