any easier/nicer way to redirect?

i’ve just moved my blog to another host. the older one is a free home-made server which i used for years, and i wanted to leave to make space and do other things..
the problem is that i’m deeply crawled by google and search engines, so that i would like to keep my about 200 daily accesses (baad guy ?? )..
the old address was https://gat.blogo.net — the new one is https://www.gatblog.net
well, i wrote some rewrite rules in my old (and desert) web server root, that look like:
RewriteRule ^([0-9]{4})/?([0-9]{1,2})?/?([0-9]{1,2})?/?([0-9a-z-]+)?/?([0-9]+)?/?$ https://www.gatblog.net/index.php?year=$1&monthnum=$2&day=$3&name=$4&page=$5 [QSA]
and
RewriteRule ^(.*) https://www.gatblog.net/ [QSA]
..and so on, redirecting for /categories */trackback etc..
now, if i search on google, for example, “gat blog lorna” i get this uri:
https://gat.blogo.net/2003/10/15/lorna-di-papi-chulo-morta-un-qui-pro-quo/
if i click it, i’m redirected to:
https://www.gatblog.net/?year=2003&monthnum=10&day=15&name=lorna-di-papi-chulo-morta-un-qui-pro-quo&page=
which, in fact, is the right page.. but has such an ugly look!!!
is there a way to be redirected directly to:
https://www.gatblog.net/2003/10/15/lorna-di-papi-chulo-morta-un-qui-pro-quo/
??
and again, there are some wordpress specific rewrite rule (for example, to redirect EVERYTHING you could have in wordpress, like trackbacks, archives, feeds etc?) you can suggest me?
thanks very much