It is impossible to recreate a 2nd edition wand of misplaced objects with just one spell, which is why it cannot be a wand. It can however, be recreated as a rod.
Here are the 3.5 definitions of a wand and a rod:
Definition of a wand: A wand is a thin baton that contains a single spell of 4th level or lower. Each wand has 50 charges when created, and each charge expended allows the user to use the wandís spell one time. A wand that runs out of charges is just a stick.
A typical wand is 6 inches to 12 inches long and about ľ inch thick, and often weighs no more than 1 ounce. Most wands are wood, but some are bone. A rare few are metal, glass, or even ceramic, but these are quite exotic. Occasionally, a wand has a gem or some device at its tip, and most are decorated with carvings or runes. A typical wand has AC 7, 5 hit points, hardness 5, and a break DC of 16.
Definition of a rod:Rods are scepter-like devices that have unique magical powers and do not usually have charges. Anyone can use a rod. Rods weigh approximately 5 pounds. They range from 2 feet to 3 feet long and are usually made of iron or some other metal. (Many, as noted in their descriptions, can function as light maces or clubs due to their sturdy construction.) These sturdy items have AC 9, 10 hit points, hardness 10, and a break DC of 27.
Rod of Misplaced Objects
Activating a rod of misplaced objects is a standard action. The rod emits a multitude of golden orbs that rush toward a target creature. The orbs surround the victim and swirl around him wildly for 1 round. During this time the victim is confused and can take no action.
At the end of the round, the orbs vanish and the victim is free to act. He discovers, however, that all objects on his person have been moved. Some items are inconveniently located, while others are nowhere to be seen. A warrior might find his magical ring on one of his toes, his sword in his pants, his gold pieces in the sheath of his sword, and his breastplate on his head. The more possessions a victim owns, the more confused the situation becomes. The DM is encouraged to be devious.
Because of the chaotic placement of items, the victim suffers several penalties. Movement is reduced by half. Armor class of characters wearing armor is reduced by 2, since pieces are not worn properly. Attack rolls made by the victim are made at a -2 penalty. These penalties are eliminated if the victim devotes 2-5 rounds (1d4+1) to rearranging his gear.
A character requiring an item carried in a backpack, pouch, pocket, or other container must spend 2-12 (2d6) rounds searching for the item. This penalty is canceled if 3 turns are spent unpacking and repacking all gear.
The DM must define the locations of objects any time a character reaches for them or if they impair motion or sight. When deciding locations of objects, the DM should state the obvious effects of impaired sight and movement immediately, such as boots worn on hands or a cloak over the face.
Items held within a bag of holding, Heward's handy haversack, or other magical containers are unaffected. However, the containers themselves are subject to relocation.
Moderate Necromancy CL: 8th Prerequisites: Craft rod, confusion, lesser, bestow curse; Price: 11,000 gp
P.S. to respond to your last statements: Perhaps I do not understand why you were having so much trouble with this item in the first place. It is not that difficult to convert items from 2nd edition to 3rd edition. There was a Conversion Manual published by WotC that helps a lot. the following may help you when converting items from 2nd edition to 3rd edition:
"If a staff or wand has a unique power, it is now a rod."
"If the old casting time is less than 1 round, the spellís new casting time is 1 action. If the old casting time is 1 round or more, the casting time is unchanged."
I hope this helps.