Autosubmitters are a fraudulent scam
Submitting your website using automatic submission applications is generally a bad idea. One of the reasons is that some search engines detect this type of submission, and will penalize you for that.
Thus, you will be better off if you submit manually and fill in the fields yourself.
For the major search engines such as Google and MSN Search which have crawlers spidering everything, you can aswell not submit your website at all, since search engines will pick up your website from other websites that link to you, and normally there is at least one website that is linking to you. Note that this website which links to you, must be already visible to search engines.
For getting your website in most search engines, you should submit it at directories over the web, which are crawled frequently by web spiders. Also, linking to it from your existing websites will let the major search engines know about your new website.