We have already looked at these arguments. Unfortunately, this distinction is obscured by a mistake in Beck's translation. Imperatives are objective principles that would infallibly determine the will if we were fully rational, but may not in fact determine the will if we are not rational. The correct translation is not 'desire', but 'will'. Will is a matter of intentions, decisions and choices, not mere desires or inclinations.
All hypothetical imperatives say is that certain actions are useful for certain ends.
They don't say that there is anything absolutely good about fulfilling one's desires. The hypothetical imperative does not tell you to satisfy your desires. But this maxim is a 'subjective principle', not an imperative. I will also will the means. The end is either good absolutely, if it is an end that must be willed by the good will, or is not good at all, if it is merely the object of pleasure.