iramos y vamos.......

iramos y vamos.......
 

iramos y vamos <<< es mismo?

cuando puede alguien usar esas?

No, no son lo mismo. (No, they aren't the same.)

The verb you're talking about is ir (to go).
Here is the present tense conjugation of the verb:

yo voy tú vas usted va él va ella va

nosostros vamos vosotros vais ustedes van ellos van ellas van

Vamos is the first person plural form, and means 'we go' or 'we are going'. It can also mean we will go. In Spanish, the present tense can imply what we think of as the future tense.

Here is the future form of the same verb:

yo iré tú irás usted irá él irá ella irá

nosostros iremos vosotros iréis ustedes irán ellos irán ellas irán

Note that iremos is the 1st person plural in this instance. It means we will go. So, vamos and iremos can be interpreted to mean the same thing.

iramos y vamos......
 

so how would you say "if we are going to talk, it has to be outside."

"si vamos a hablar, lo debe ser afuera."

and thanks so much you guys.

I'm certain there are a number of ways to say this. Here are a few suggestions:
Si vamos a hablar, hablemos afuera.
Si vamos a hablar, salgamos (de acá). (afuera is understood)
Si vamos a hablar, debemos hacerlo afuera.
Si vamos a hablar, debemos hablar afuera.

agree with Rusty. Other options
"si vamos a hablar, hagámoslo fuera"
"si vamos a hablar, vamos a hacerlo fuera"
saludos :D