Want to fix up my blogger.com. best help gets 5 stars!!!!!!?

Ok what HTML would i use if i add a picture to my blog and i want to have the ability to have the visitors be able to click on a picture and it opens on a new page and is much bigger? how would i go about doing this? and also how can i add youtube and other videos i see on the web on my blog?
Want to fix up my blogger.com. best help gets 5 stars!!!!!!?
HTML Code For Websites %26amp; Blogs is the best i.e.





%26lt;a href="http://blah. com/blah/wizardmasterhp/blah=blah=blah.j... target="_blank"%26gt;%26lt;img src="http://blah. com/blah/wizardmasterhp/blah=blah=blah.j... border="0" alt="blah"%26gt;%26lt;/a%26gt;





It is usaly called the Embed code i.e.


Embed:


%26lt;object width="425" height="344"%26gt;%26lt;param name="movie" value="http://www.youtube.com/v/XJM39k2l... name="allowFullScreen" value="true"%26gt;%26lt;/param%26gt;%26lt;embed src="http://www.youtube.com/v/XJM39k2lAy... type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"%26gt;%26lt;/embed%26gt;%26lt;/object%26gt;
Reply:First find a picture.


Like my picture i found is www.sunset.com.png


Then the code will be like....


%26lt;img src="www.sunset.com.png" /%26gt;


%26lt;a href="www.sunset.com.png"%26gt;%26lt;/a%26gt;