Opening the OpenUO subversion, we need file FileIndex.cs because it contains Jeff's changes to 'support' uops - http://openuo.codeplex.com/SourceControl/changeset/view/75337#1642112

Looking for method ReadUOPEntries() and let's look at the code inside it. It contains the following code:

int x = 0;

foreach (var uopEntry in uopEntries)

{   

       if (2855 == x)

       {

       }

       x++;

       // creating new index entry from the collection entry and adding it to the entries list

}

Well, when i first time saw this - i was stucked. I think you too - he added counter variable and used it for empty if check? WTF? He compared counter with 2855. Why 2855, not 3000 or 99999? I can explain. First time when Jeff looked at uop format he thought that it's now just a collection of ordered data chunks and he can simply concatenate chunks and assign it their order index (from 0 to chunks count -1). Man said - man did. But soon he realized that he needs index - valid index for chunks. Because each chunk in UO has an ID. Really each dataset (art, gump, sound, etc) has and index table (from 0 to table limit, for art it's 0x13fdc, for gumps it's 0x10000 etc) and that table has skips. Yep - first chunk can have index 0 and second can have index 34! He looked at artlegacymul.uop and found that it keeps 2 parts. First part is land tiles (2855) and second is static tiles. He thought - well it's a solution! He just added check for 2855 and separate tiles. But he soon realized that it's not a solution because he still cannot get index data ;) After that he stopped development of that method ;) That's why we see in code above that strange check. Just note that this code tries to handle ANY uop (not only art, so 2855 check is absurd for gumps/sounds/maps) That's why OpenUO still doesn't have UOP solution and UO Fiddler too from March 13 to May 29 ;) 

That was a short (;)) story about dumb and dumber in uo freeshards communities ;) Thanks for attention ;)

P.S. Hint for RunUO Team - you can find another dirty hack for reading land tiles from map muls (you found one working with offset) but it will be more complex ;) But it's not the way like OSI uses (and me too) ;)

P.P.S. Just forgot to send greetings to my old dear friend Phantom, how are you? ;)

P.P.P.S. UPDATE: I should apologise for last update about Vorspire. Problem was in someone (Ryan, did you?) who wiped HellRazor's post about Jeff's fail. The next post in that thread by Vorspire was really an answer to HellRazor's one, but not as a replacement for it. Just wanted to clear that situation, but it doesn't change the facts about HellRazor posts and Jeff's code -> so the thread's name is still valid ;)