Sitemaps, Meta Data, and robots.txt Forum

first of all let u know that i have blocked them already using commands

User-Agent: *
Disallow: /*jtype*

and when i check for these type of urls in google webmaster tools it is showing these urls blocked.

e.g
www.example.com/demo/jokes_category.php?cat_id=78&jtype=1

Now my question is even they are blocked by robots but still appearing in google with two urls

www.example.com/demo/jokes_category.php?cat_id=78&jtype=1
and

www.example.com/demo/jokes_category.php?cat_id=78

if first one is blocked is there any fear of penalty in future for duplicate content or duplicate url

If they can't see the content, how can they know it is a copy of some content on another page?

u have released my tension as many experts are net were not sure as there were two urls on google and both are still appearing on google and one of them which i mentioned above are blocked two weeks ago

And plz confirm me one more time as both of them are still in google

www.example.com/demo/jokes_category.php?cat_id=78&jtype=1
and

www.example.com/demo/jokes_category.php?cat_id=78

and are there any chances that they get removed in future.

ok now about code how can i use
User-Agent: Googlebot

bcoz i want yahoo and msn to follow the same rule so what should i do regarding this

and u mean i remove

*
which is at the end of jtype of my command , i get this command from this page

[google.com...]

here it is written

To block access to all URLs containing the word "private", you could use:

User-agent: *
Disallow: /*private*

and last but not the least question is can i use any command to block all the characters which are used after this url

www.example.com/demo/jokes_category.php?cat_id=78

means

www.example.com/demo/jokes_category.php?cat_id=78blahblahblah

and i also want to mention i used this forum very first time and it really helped me a lot

the robots.txt urls cached pages are just turning to

We're sorry, but we could not process your request for the cache of http://example.com/demo.php?cat_id=ahhf&jtype=1. Please click here to check the current page or check for previous versions at the Internet Archive.

So what u say is it properly blocked by yahoo as well

and yes most of the pages are crawled with

jtype=1

example below

www.example.com/demo/jokes_category.php?cat_id=78&jtype=1

as i have blocked them and now i want all search engines to crawl the urls without extra parameter

one of the example is

www.example.com/demo/jokes_category.php?cat_id=78

so can i submit a new sitemap with new requried urls or just wait for few weeks,months