1. now that i've installed my X3 studio do i need to update it or is done already?
2. in older verisions of cakewalk  there was a guitar tuner in the cakewalk F/X bin did they remove it?

X3d is the lastest version, check the SONAR "About" screen. I would imagine you need to apply the X3d update.
 
The Cakewalk tuner was dropped some time ago. There is a tuner built into the TH2 SONAR plug-in. Otherwise there are free tuners on the web such as the ones included in MFreeEffectsBundle and GVST.

cool, thanks for the reply

removed  was wrong info

Yes, I know the post asked about SONAR X3 Studio. Updates for all versions have always been provided in the support pages. From the update link I provided above:
 
The information in this article applies to:

• SONAR X3 Producer
• SONAR X3 Studio
• SONAR X3

 

He's right Johnny.
 
There have always been 3 upgrades - base version, Studio & Producer
 
This release is no different

Cactus Music
No he said Studio,,, the patches are for producer, there were no fixes for studio,, unless I missed something. 
The way it works is the patches, if any, will show in your download area. 

Seems you missed something. When the updates are released they are not accessible from your account. They are usually found in the Support area. Check Support by Product. After selecting which update you want you will be taken to a page with the update release notes with a link to each of the 3 version updates you want to download. For example;
http://www.cakewalk.com/S...reader.aspx/2007013355

When the update is first released there is usually a link in the forum stickies.
There is always a separate update for each Sonar version, Producer, Studio and Basic.

It said there are three updates:
Sonar X3b Studio (X64)
Sonar X3c Studio (X64)
Sonar X3d Studio (X64)
so should I just click X3d?

X3d is a cumulative update. It is the only one needed. From the link I provided above:
 
A new update is available for SONAR X3, SONAR X3 Studio, and SONAR X3 Producer that addresses user reported issues. In order to install this update you must have SONAR X3 already installed. Note that this is a cumulative update. You can install SONAR X3d directly over the SONAR X3 release version (available on discs), the SONAR X3a ESD version (available as a digital download), the SONAR X3b update or the SONAR X3c update.

Jump from new install right to the d patch. Pass Go and collect $200 (worth of fixes).