If Allah wants to do good to somebody, He afflicts him with trials - and the changing of the Hadiths

Volume 7, Book 70, Number 548:

Narrated Abu Huraira:Allah's Apostle said, "If Allah wants to do good to somebody, He afflicts him with trials."

1) Why would Allah want to do good to somebody by afflicting them with trials?
a) I have already discussed this hadith earlier - http://muslimhadith.blogspot.com/2008/07/allah-sadist.html

However, what is interesting are some recent translations:

Some Arabic translations state the believer is (Musaab), meaning being tested with affliction.The current revised version reads as follows: The believer is (Musaan), meaning being protected and guarded.

This new version is clearly bastardized, as the next hadith by number clearly states:

Volume 7, Book 70, Number 549: Narrated Aisha: I never saw anybody suffering so much from sickness as Allah's Apostle As such, it is plain that Mohammad was suffering, and in his way, wanted to show his followers that Allah shows his followers mercy by afflicting them with disease.

This is totally contrary to the new translation "Musan" which states, as discussed above, "being protected and guarded.'

The questions that need to be asked with the new translations are:

1) Are Muslims embarrassed by the hadiths, and the portrayal of Mohammad (PBUH)?

2) Why are some Muslims changing the meanings of the hadiths? http://news.bbc.co.uk/2/hi/europe/7264903.stm
a) Can a person truly believe in their faith if they have to change the very doctrine they believe in?
b) Does this mean that Turks are not real Muslims any more if they change the very hadith?

3) There is also the situation of the Quran-only Muslims - http://en.wikipedia.org/wiki/Qur
a) How can Quran only Muslims be Muslims if they do not follow Mohammad's (PBUH) Sunnah?

4) The Quran commands Muslims to obey the words of the Holy Prophet Mohammad (PBUH)

Qur'an 4:12 "Those who obey Allah and His Messenger will be admitted to Gardens to abide therein and that will be the supreme achievement. But those who disobey Allah and His Messenger and transgress His limits will be admitted to a Fire, to abide therein: And they shall have a humiliating punishment."

a) How can a Quran-only Muslim obey Prophet Mohammad (PBUH) or Hadith-changing Muslim believe in Mohammad when they ignore the very sayings of Mohammad (PBUH) and his Sunnah?
b) Does this mean that Muslims are ensuring that their fate is destined to the hell fire as only 70,000 Muslims will get to heaven, and the rest will meet the hell fire, like every other infidel? http://muslimhadith.blogspot.com/2009/02/heaven-is-filled-up.html