Since official .org site is shutting down, these are some of the popular vBulletin forum CMS addons. Version 4.x should work.

[AJAX]Advanced Forum Statistic - 4.0.2.zip
[AJAX] - Advanced Forum Statistics.zip
[AJAX] Live Search Eng v4.0.6.zip
[AJAX] TopX 4.0.4.zip
AMP Auto Tagger_2.0.1.zip
Block Censored Words by BOP5 - VB4 v13.zip
[DBTech] Advanced Post Thanks Like v3.6.3 [Lite].zip
[DBTech] Advanced Registration v2.0.7pl2 [Lite].zip
[DBTech] Advanced User Tagging v3.3.0 [Lite].zip
[DBTech] DragonByte Gallery v1.3.4 [Lite].zip
[DBTech] DragonByte SEO 2.0.43 [Lite].zip
[DBTech] InfoPanels v2.2.4 [Lite].zip
[DBTech] User Status & Moods v1.3.6-pl2.zip
[DBTech] vBActivity & Awards v3.2.3 [Lite].zip
[DBTech] vBCredits v2.1.0 (Lite).zip
[DBTech] vBDonate v1.4.9 [Lite].zip
[DBTech] vBDownloads v2.4.9 [Lite].zip
[DBTech] vBNavTabs v1.3.3 [Lite].zip
[DBTech] vB Optimise Lite v2.0.1.zip
[DBTech] vB Optimise v2.7.1 [Lite].zip
[DBTech] vBShop v3.5.3 [Lite].zip
Duplicate IP Check by BOP5 Free v212.zip
English Verify Mail before registration vb4_v2.0.8.xml
Enhanced Captcha Image Veriffication VB3.x.x.zip
fix_login.php
force_users_to_read_a_thread_2_10.zip
funcaptcha-vbulletin-v1.2.1.zip
FuzzySEO vb4 1.5.0b.zip
GCBOS_0.8_VB4.zip
GlowHost_-_Spam-O-Matic_v1.2.8_VB3_VB4.zip
GlowHost_-_Spam-O-Matic_v2.1.2_VB4.zip
Helpful Answers vb - 2.4.2.zip
Hide_links_from_guests.zip
Import External Images 1.0.5.iei4.zip
iTrader 2.8.2 RC2 PATCHED.zip
JB hCaptcha for vBulletin 4.zip
keycaptcha-for-vbulletin-37-4x.zip
kh99_new_recaptcha_v1_0.zip
Limit Number of Posts&Threads in Forums Within a Time Frame - max_posts_threads.xml
MARCO1 Advanced Reply - Edit With Smiles!.zip
MARCO1 Hide BBCODE.zip
MarkFL - Enhanced Thread Rating v1.3.zip
No Spam Image Enhancement by BOP5 VB4 v1.0.zip
PHPKD_VBAQR_Ultimate_4.0.110.zip
PHPKD - vB Spam Assassin - PHPKD_VBSAS_4.2.202.zip
pm_management_suite_lite.zip
post_thanks_7_88_for_vB_423_with_collapse_scroll_p ostbit_fix_and_added_features.zip
product-ajax_topstats_vb4a.xml
product-avataronreg.xml
product-changethreadsowner190_40-english.xml
product-kh99_spambot_stopper_1.1.1.zip
Product MARCO1 Admin Tools.zip
Product - MARCO1 CKEditor Advanced Quick reply and Quick edit.zip
product-mass_pm_4-0-1.zip
product-mnl_random_avatar.xml
product-onetouch_ban_clean_1.xml
product-pluseone.xml
Product Review Forums v1.4.0.zip
product-threadprefix_changeinline.xml
product-vbsc.xml
product-websites_referred.xml
Recent_Thanks_v2.6.2_vB4.zip
Rename register.php by BOP5_v115.zip
Sidebar Anywhere by BOP5 v220.zip
solved_threads_2.0.1.zip
Stop Forum Spam - SFS Integration v1.0.0.zip
Stop the Registration Bots 4.0.2.zip
uCash_4.0.1_[20091120-2150].zip
vaSpy-2.0.4.zip
[vB 4] ipInfo 2.zip
vBET2410.zip
vBFoster Spamming Manager [LITE VERSION].zip
vblinkdirectory105vb415.zip
vblinkdirectory105.zip
vBookie 4.2.1 for vBulletin 4.2.zip
vbsc.zip
vbseo_sitemap-3-0 PL1.zip
vBSEO.v3.6.0.for.vBulletin.v3.x.and.v4.x.PHP.NULL-DGT.zip
vB.Sponsors2.0.6.zip
vbsso.zip
vbStopForumSpam_v0.61.zip
vmoods 4.1.0004.zip
VSa - Advanced Forum Rules v5.0.8.zip
VSa - Advanced Forum Statistics v7.1.zip
VSa - Advanced New Posts v3.0.3.zip
VSa - Advanced Permissions Based on Post Count v5.2.1.zip
VSa - Advanced Registration v2.0.3.zip
VSa - ChatBox v3.1.8.zip
VSa - Check If Already Posted v2.0.1.zip
VSa - Moderating Stats v2.0.2.zip
VSa - Visitors In Last X Hours v3.0.5.zip
Word Links FREE for VB4 by BOP5v20.zip

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