how to remove / edit topic (-t##) tracking

[web11]

hello everyone

I have a new forum so no problems making all the changes now...

I would like to use something ales then the -t## end of each topic url

I know it is needed however I still like to know how to remove it

my forum is private for testing and no duplicate url will be created in the posts

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if this is not possible at all....

is there a way to change the -t to something ales ?

and what about the numbers, can it start from 1000 ?
or maybe be random ?
or maby by time or date ?

for ex:
from: http://www.mysite.com/forum/topic-t11

to: http://www.mysite.com/forum/topic-t1011
or: http://www.mysite.com/forum/topic-t987645
or: http://www.mysite.com/forum/topic-t24-00
or: http://www.mysite.com/forum/topic-t20120327
....

thanks !