Well what did you change between the time it did work and the time it didn't work? Did you read the trouble shooting part of the tutorial?
Quote:
ERRORS I HAVE FOUND: (and maybe a fix or two :p)
1) When clicking analyse button it says "Invalid Floating Point Operation". I'm not sure yet exactly what causes this, but there are some scripts it just flatly refuses to accept. Go to the uospfiles.txt and remove all the new scripts you added but one. Try analyze again. Repeat by adding your custom scripts one by one until you find which has the error. Then you can fiddle with it like I did and find the specific item it hates. I did this by copying the script contents to another script it accepts, until i found the bad item.
2) When clicking info button it says "Cannot open file C:\wherever\whatever.mul". This means your file paths in options are set wrong OR you have sphere or client.exe running. Make sure you close them both.
3) You patched successfully, it cleaned out the items from your worldfile, but they aren't there. Make sure the statics files you just patched are the ones you're using. If you are, make sure sphere wasn't running. It'll let you patch while it's running and just fail (without warning you). If this happens, replace with those backups and patch again with server turned off.
4) You patched successfully, but some of your items are now "nodraw" or "unused" tiles. This means it froze items in your worldfile that it a) didn't have a mul entry for (bad art.mul?) or b) didn't have a script for. Make sure those item scripts are in uospfile.txt
5) You have the item scripts in the uospfile.txt but it ignores them and doesn't freeze them. There's a few things it's hardcoded (i think?) not to freeze. Anything you do a .setname on will NOT freeze. For example naming that mage shop sign to "Mage's Delight" will prevent it from freezing. Save things you need to name till you're done freezing completely, then keep em in your worldfile. Other things it won't freeze are items with certain attributes or types. It ignores magical or newbied attributes. It will not freeze anything that doesn't have locked down or static attribute. And seems to ignore things with custom types and types that directly affect gameplay (example t_booze.. won't freeze those bottles of ale :p).
Does your problem match any of those problems? Any errors? Messed up statics or completely blank statics? Did you double and triple and quadruple check that you (client and server) are using the same files that UOSP patched?