of course everyone who helps in betatesting and/or translating should be proud of doing it... the fact that s/he gets listed in the credits is the less important thing
About the spanish site, we've translated everything that is translatable (<- is it said like that?), and don't worry if people can't understand it... we have a big
spanish community forums where we give support in spanish like in this forum.
Anyway, we take note of you and we may call you if we need more help (that does not mean that we will call you, tho)
Thanks for the interest.