hola, if u talk spanish, do so, coz I'm from Argentina
I don't know what u mean by "so it looks nice"... could u give me an example about what do you mean with it ?
I think u can make a very good looking frontpage just by editing parameters and working mainly with CSS, else some mambo guru correct me if I'm wrong...
Why i say this ? well, coz i see
www.mamboawards.com and i can see lot of great looking mambo websites ... and i don't believe those sites are based on editing core files...
tell me what do u want to do and then maybe some1 could help a little bit more (including me ! hope so)