Is there any alternative firmware for ZTE zxv10 w300

Question

I am sharing a ADSL connection with my friends using a ZTE w300 wireless router. However as many people are sharing the connection when one person is downloading the bandwidth cannot be throtelled. I have come across firmware such as
Gargoyle router, Openwrt however the website doesnt say that it supports the above router. can anyone suggest a software or a firmware which has the ability or monitoring and throtling the bandwidth per user/ip

Solution

You will probably find that what you are looking for does not exist - Openwrt. Gargoyle Router, Tomato, DD-WRT etc are all "Linux based", and have extremely limited support (if any) for ADSL connections. If this post is anything to go by your router is definitely not supported.