Some of my clients are complaining about the placement of the field description in SharePoint forms, and I agree with them. When you create a field, or column, you have the opportunity to enter descriptive text that will appear on the form, which can be valuable in telling your users how they should fill out the field. However, this text appears below the field data, which is inconvenient for single-line fields, but which really poses a problem when the fields are more complex:
Your instructive field description gets lost, and may even make users have to do double work if they read your instructions after they've already entered data (not to mention the fact that if you're converting a paper form, you'll have to think about the descriptions as you enter them and not use terms like "below").
One of my clients was ambitious enough to create a custom form specifically to solve this problem. She placed the descriptive text below the field name, using a slightly different type style for the description than for the field name. The hitch is that custom forms need to be created from scratch; you can't modify a list's existing New, Edit, or View forms in SharePoint Designer to make a relatively simple change like this. If you want the descriptive text to appear consistently on both New and Edit forms, you'll have to create two forms. In my client's case, the investment of time and effort was justified because her internal customers gave the description placement high priority in their requirements, and because the form is a fairly long one which will be used regularly by every employee in the organization. But smaller, simpler, or less-frequently-used forms may not justify the extra hours it would take to customize them.
Now here's the really maddening thing. Microsoft has placed the field descriptions under the field name on some of their own internal forms, for example, the Change Column form for any list or library:
Which raises the question: If Microsoft's form designers decided that this was a good placement for the field description, why don't end-user list and library forms have the same layout? Why are content owners forced to work with (or around) a less-intuitive design?
This is one of the big items on my wish list for the next release.