Pictures would be great in diagnosing - get them posted to a hosting site like Flickr or Photobucket, then grab the HTML code from the picture in question (the 'a href....' stuff) and place it in your post here. You'll be able to preview your message before you post it, and you should see your picture here. For a better explanation, search 'posting pictures' at Garden Web here.

Hello,
I received a cactus from a good neighbor of mine about eight years ago before they moved. The Cactus must be about 35-40 years old and is about 6 feet tall. I love the cactus, but have no idea what type it is. Also, within the past year it started to get a brown coloration and was leaning. We thought it was too big for the pot, so we placed it in a bigger pot.

It is now leaning even more after five months of putting it in a larger pot! I was going to try and put it in an even bigger pot this Saturday with the help of my dad and brother. It weighs a ton and is very difficult to move and not hurt us or the cactus. Last time we broke the pot to get it out and after moving it the cactus did have white puss seep out for a little bit. It does appear to have new growth on the top of it.

I have now added pictures, maybe with your expertise you can help me. We love the cactus, but IÂ am sure what to do. Any advice would be greatly appreciated. Thank you for your time.

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Has this been answered in another post, or is it just another flashback?

It's not a cactus it's a Euphorbia and cactus still will burn. This is a really sunscald Euphorbia. You can cut it off over the burnt spots and start fresh new plants. I sent you a message on photo bucket. Do not put in direct sun. They just need bright indirect light. Wear gloves when you cut it off. Euphorbias bleed white latex when cut and is sometimes irritating to the skin and eyes. Let dry at least a week before replanting the cuttings. Water very sparingly until after it roots or it will rot. They are easy to reroot.