I want to say a BIG thank you to all passionate Developers - the Buzz is indeed a pretty good piece of hardware with great potential and deserve any attention.
This is a list of lasts ROM releases and other infos for the Wildfire.
ROMs Listed by Experimental/AOSP/Sense/Hybrid and release date:
2011-02-28 - Honeyfire Alpha 2 (Honeycomb) by ben1066 - Thread here.
AOSP - no Sense:
2011-03-28 - CyanogenMod-7 for HTC Wildfire (Buzz) :: V7.0.0-RC3 (28/03/2011) (2.3.3 - AOSP - no Sense) by HCDR.Jacob - Thread here.
2011-03-02 - ImPrOS-Hybrid-Stable and fast-Tweaked framework (2.2.1 - AOSP - no Sense) by h4xoer - Thread here.
2011-01-23 - CyanogenMod-7 Nightly Builds for vendor Buzz. (2.3.x - AOSP - no Sense) by HCDR.Jacob - Thread here.
2010-12-15 - HCDR.Gingerfire v0.2a || Still won't work much. (2.3 - AOSP - no Sense) by HCDR.Jacob - Thread here.
2010-12-12 - CyanogenMod 6.1.0 (Stable) for HTC Buzz (Wildfire) || Nightlies now up (2.2.1 - AOSP - no Sense) by HCDR.Jacob - Thread here.
2010-12-06 - UtmostROM_2.0.8a (2.2.1 - AOSP - no Sense) by UtmostMick0 - Thread here.
2010-10-31 - OpenFire v 2.3 Froyo 2.2.1 - Facebook sync fix! (2.2.1 - AOSP - no Sense) by adeadrat - Thread here.
2011-03-23 - Android Freedom Wildfire 2.2.1 Arabic sense (2.2.1 - Sense) by moni69 - Thread here.
2011-03-19 - *JOKERsDROID* (2.2.1 - Sense) by emiliano7 - Thread here.
2011-03-11 - DK Custom Froyo V4.3.6 (Froyo 2.2.1) Stable & Smooth (2.2.1 - Sense) by Deep-Knight - Thread here.
2011-03-10 - InsertCoin Beta v0.1 A2SD (2.2.1 - Sense) by baadnewz - Thread here.
2011-03-05 - WildPuzzleROM, android 2.3.2 with NEW SENSE (for devs, may not even work!) (2.3.2 - Sense) by danne_jo - Thread here.
2011-02-06 - [Ds_Version_7.a][opengl 1.1][transparant notifcation][custom lockscreen] (2.2.1 - Sense) by daddyspud - Thread here.
2011-01-23 - Leaf r3 [Froyo][Based on 188.8.131.52][Modded/Super Fast/Live Wallpapers] (2.2.1 - Sense) by doomed151 - Thread here.
2011-01-15 - WildPuzzleROM_2.2.1 v0.8, New Base, Transparent Lockscreen, LWP in SENSE (2.2.1 - Sense) by danne_jo - Thread here.
2011-01-13 - AeroFire_v0.1b[Froyo 2.2.1] (2.2.1 - Sense) by JoeyDelp - Thread here.
2011-01-07 - SUnAaBh v1.1| FROYO|Insane Stable|Fast|New Radio|7/1/11-LWP select added (2.2.1 - Sense) by warriorvibhu - Thread here.
2010-12-10 - 2.22.405.1 r1 - MoDaCo Custom ROM (Froyo 2.2.1) with Online Kitchen (2.2.1 - Sense) by paulobrien - Thread here.
2010-11-10 - EfferusIgnis_1.0_(Eclair)_Three_uk_ROM (2.1 - Sense) by adamsy - Thread here.
2010-11-03 - WildPuzzleROM_2.1 Eclair v1.0.1 (2.1 - Sense) by danne_jo - Thread here.
2010-10-25 - WildPuzzleROM_2.2 Froyo v8.0.11 (2.2 - Sense) by danne_jo - Thread here.
2010-09-19 - VIBES v1.6|Rooted|App2SD|Wifi-Tether|RAM Optimized|Fast|Updatable by warriorvibhu - Thread here.
2011-02-22 - Stock Froyo + HTC Hybrid V6 Project On Hold (2.2.1D - Hybrid) by HewGBalls - Thread here.
Note: Essentials Differences between ROMs - by adeadrat (updated 2010-12-25 by adeadrat - thnx)
[KERNEL][OC/UV][BFQ][AUFS][FTW][GPL] HCDR.Kernel v4.1 || Flash to any ROM by HCDR.Jacob
2011-01-09 - RUU_Buzz_Froyo_Orange_ES_184.108.40.206_Radio_13.55.55. 24H_220.127.116.11 SAFE! (Stock - 2.2.1 - Sense) by danne_jo
2010-12-18 - Safe Buzz_Froyo_HTC_WWE_2.22.405.1 | No Hboot | No Radio | No Rooted & Rooted (Stock - 2.2.1 - Sense) by McSpee
2010-11-28 - Repack of the chinese RUU, Android 2.2 Froyo Rooted Chinese apps removed (Stock - 2.2 - Sense) by Andrey765 - Thread here.
Useful links and Rooting:
[WARNING] Do not upgrade to the official 2.2, read the explanation, why.
Unrevoked 3 for Wildfire is now available
[GUIDE] One Click How to Root the Wildfire with Unrevoked 3.21
[AlphaRev] = FULL ROOT, AlphaRev soon to WILDFIRE (Proved working!)
[GUIDE] Turkeys' Ultimate Guide to Root Wildfire v42.1.2 (Root ROM A2SD & Unoot!)
Hoping useful, comments appreciated.