When I modprobe -v rt2800usb.gz.ko, it registered itself in list of modules but after I reboot its gone.
root@box:/home/tc# lsmod
Module Size Used by Not tainted
rt2800usb 16384 0
rt2800lib 40960 1 rt2800usb
rt2x00usb 12288 1 rt2800usb
rt2x00lib 28672 3 rt2800usb,rt2800lib,rt2x00usb
mac80211 155648 3 rt2800lib,rt2x00usb,rt2x00lib
cfg80211 110592 2 rt2x00lib,mac80211
speedstep_lib 12288 0
cpufreq_stats 12288 0
cpufreq_powersave 12288 0
cpufreq_userspace 12288 0
cpufreq_conservative 12288 0
snd_intel8x0 20480 0
snd_ac97_codec 73728 1 snd_intel8x0
ac97_bus 12288 1 snd_ac97_codec
snd_pcm 49152 2 snd_intel8x0,snd_ac97_codec
snd_timer 20480 1 snd_pcm
snd 36864 4 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
soundcore 12288 1 snd
snd_page_alloc 12288 2 snd_intel8x0,snd_pcm
i2c_i801 16384 0
intel_agp 12288 1
intel_gtt 16384 1 intel_agp
agpgart 24576 2 intel_agp,intel_gtt
squashfs 24576 194
loop 20480 388
mperf 12288 0
ppdev 12288 0
floppy 45056 0
parport_pc 24576 0
parport 24576 2 ppdev,parport_pc
microcode 12288 0
e100 28672 0
pcspkr 12288 0
lpc_ich 16384 0
mfd_core 12288 1 lpc_ich
root@box:/home/tc# iwconfig
ip_vti0 no wireless extensions.
dummy0 no wireless extensions.
lo no wireless extensions.
eth0 no wireless extensions.
tunl0 no wireless extensions.