Dear wwh, The verb usage that I am pasting below will clarify the revamping problem. Do also take a look at the origin of vamp2

vamp1 noun
1 the upper front part of a boot or shoe.
2 (in jazz and popular music) a short, simple introductory passage, usually repeated several times until otherwise instructed.
verb
1 [no obj.] repeat a short, simple passage of music: the band was vamping gently behind his busy lead guitar.
2 [with obj.] attach a new upper to (a boot or shoe).n (vamp something up) informal repair or improve something: the production values have been vamped up.

ORIGIN Middle English (denoting the foot of a stocking): shortening of Old French avantpie, from avant �before� + pie �foot�. The musical sense of the verb developed from the general sense improvise.

vamp2
(informal)noun: a woman who uses sexual attraction to exploit men.
verb [with obj.] blatantly set out to attract: she had not vamped him like some wicked Jezebel.

ORIGIN early 20th cent.: abbreviation of vampire.