Illustrator Question re: Transparency

[NinjaEpisode]

Been playing in Illustrator 10, btw Frosty?  Friggin Awesome Tutorial.  

I'm nearly done with what I've been vectorizing, but I have two areas that I need to make completely transparent to the layer behind them, and I can't figure out how to do it.

Essentially, these are the area inside the letter "O" and the aread inside the letter "R" and I don't know how to get rid of that color area.  

Help maybe?

[GGKoul]

Try asking this in the Artwork section

[neuromancer]

You can't make part of an object transparent, you need to cut a hole in it. In Illustrator 7 the tools you need are on the Pathfinder pallet. Make the hole as an object, and select the object and the hole, then click the pallet button.

Bob

[rdagger]

In AI 10 you can use an object to cut out a portion of another object.  
To draw an simple O:
1.  Draw a circle.
2.  Draw a smaller circle and center it over the bigger circle.
3.  Select only the smaller circle.
4.  Click Object-Path-Divide Objects Below.
5.  Delete the smaller circle.

[mahuti]

What you are trying to do is to "create a compound path"

If you have letter 0, it is made of 2 lines, the outside and the inside. To make the inside "invisible" you need to create a compound path.

SO, choose the base of the object, hold "shift" and slect the invisible part, then choose "Object > Compound Path > Make"

There you go.

[NinjaEpisode]

Thank you gentlemen!