Jazaakillah khayr sister Summer03 for bringing this to attention, and after a bit of research I did in fact come across the fact that this Hadeeth is Da'eef - meaning weak, and we do not take it as a part of our belief, since there are numerous other authentic hadeeth about Ramadhan.
The following is the information regarding it:
"0 people a very great month has come upon you, a month containing a night better than a thousand months. Allaah has made it an obligation to fast in it, and standing in prayer in its night is a supererogatory action. Whoever seeks nearness to Him with a good deed in it will be like one performing an obligatory action in other months...
It is a month the beginning of which is a mercy, the middle Forgiveness, and its end is a granting of freedom from the Fire..."
It is also a long hadeeth; this is the most well-known parts of it. This hadeeth is also reported by lbn Khuzaimah (No.1887), al-Mahaamulee in his Amaalee (No.293), and al-Asbahaanee in at-Targheeb (Q/178, B-manuscript) by way of 'Alee ibn Zayd ibn Jud'aan: from Sa'eed ibn al-Musaayib: from Salmaan.
This isnad (chain) is
da'eef (weak) due to the weakness of'Alee ibn Zayd.
Ibn Sad says about him, "He is somewhat weak, he is not used as a proof"
Ahmad ibn Hanbal said: "He is not strong."
Ibn Ma'een said: "He is weak."
Ibn Abee Khaithumah said: "Weak in everything."
Ibn Khuzaimah said: "I do not accept him as a proof due to his weak memory." - as occurs in at-Tahdheeb (7/322-323).
Ibn Khuzaimah said after quoting his narration: "If the narration is authentic."
Ibn Hajr says in al-Atraaf "It is narrated by 'Alee ibn Zayd ibnjud'aan alone and he is weak" as As-Suyootee quotes from him injam'ul-Jawaami' (No.24,714).
Ibn Abee Haatim reports from his father in 'Ilalul-Hadeeth (1/249) that he said: "The hadeeth is munkar (denounced)!"
And another reason it is not taken is because as one scholar said,
"As upon examining the text of the Hadeeth, Ramadan is all mercy, not just the first 10 days. Ramadan is all forgiveness, not just the middle 10. And so on. So the Hadeeth is not authentic from both sides, the chain of narration, and the strangeness of the text. And Allah knows best."
Therefore, to prevent misunderstandings the first post will be edited a bit - and the thread closed.
JazaakAllahu khayran for your understanding. Furthermore, in future we request all our brothers and sisters to be very wary from where they take their information - and check to see if the ahadeeth have proper references for where they are taken from. This way it will inshaAllaah help a little bit to prevent incorrect ahadeeth from coming into our deen and beliefs.
May Allaah guide us all, and grant us mercy and forgiveness during this blessed month.
wasalam