Yes - can AFAIK be done by installing over the updated version. If we both think of the original K-Meleon 1.1 folder.
p.s. I assume a broken install.
IMHO best install in a new location (other name/location of install folder) and upadate there - that way You always have a known-good version
My very first k-meleon 0.82 was a broken install.
It took me days to realize that such things can happen.