Hola,

" I want you" is "te quiero"

"I want her" is "le quiero" or "la quiero"?

How is "She likes you"?

Gracias
Hola George.

I want her = La quiero

Le quiero dar unos zapatos = I want to give her a pair of shoes.

She likes you = Tú le gustas (a ella)
"She likes you" may also be translated as "ella gusta de vos".

A remark: if you mean "yo la quiero" in the sense of "yo la amo", the English equivalent is "I love her". "I want her" is actually something like "yo la deseo".
SanzHola George.

I want her = La quiero

Le quiero dar unos zapatos = I want to give her a pair of shoes.

She likes you = Tú le gustas (a ella)

So if I got it right, when it's a direct object I use "La", when it's an indirect object (like in the second sentence) I use "Le"
Así es, George.
El vos es típicamente argentino, en españa NUNCA se utiliza el vos.
So if I got it right, when it's a direct object I use "La", when it's an indirect object (like in the second sentence) I use "Le"
That's correct. The exception is if you are combining indirect and direct object pronouns, you don't say "Le lo di", but "Se lo di", for example. If the 'le' or 'les' comes before a 'lo' or a 'la', change it to 'se'.