2nd suggestion tonight.
With regards to editing a post-
(i) The 1 hr time must be done away with and no restrictions wrt time should be in place or may be a 24 hours period.
(ii)Once a post is edited,a symbol should be placed in the blog(like the clock in a PNR regd for trip dairy) so that bloggers will know that the post...
more... has been edited.Infact if the system allows,we can even show the blog in the unedited form upon clicking on the symbol.
Your's lovingly
Sandy.