Classic account, how do I upgrade it?

[Kaap]

Hey,

I have a BB on a classic account. I figured I'd better upgrade it to ToA and thus also SI. Now, if I check online store I can buy ToA which comes in a box and includes classic, SI and toa. Just like my other account has.

That 1 serial number on that full box is enough to fully upgrade that classic account or must I seperatly order the SI client?

Thanks!