Bought Linksys WRT54G, How to install DD WRT?

[anish_sha]

Hi, Bought Linksys WRT54G router from ebay , its running version 2.0 firmware, now i want to know these things

1.How to get maximum range in this router even with obstacles(walls) in between

2. I want to use it as a repeater with Utsarcom(BSNL provided Type II modem), how to do that? will default firmware will do

3.What are the advantages of adding custom firware to this router?

4.If custom firmware, which one is the best suited for my purpose and my model

5.Please provide some tutorial for the above as i am just a newbie in networkin



thanks in advance